Categorized array of Google Material Icons

<?php

/**
 * Categorized arrays of Google Material Icons. Generated: 2016-02-02.
 *
 * Includes two arrays. As: 'cat1' => [1,2,3], 'cat2' => [4,5] etc. And as: 1 => 'cat1', 2 => 'cat2', etc.
 *
 * Scraped from the CSS sprite files at:
 * https://github.com/google/material-design-icons/raw/master/sprites/svg-sprite/
 *
 * Used as complement for the alphabetic code-points listing:
 * https://github.com/google/material-design-icons/blob/master/iconfont/codepoints
 *
 */

$material_icon_cats = array (
  'action' =>
  array (
    0 => '3d_rotation',
    1 => 'accessibility',
    2 => 'accessible',
    3 => 'account_balance',
    4 => 'account_balance_wallet',
    5 => 'account_box',
    6 => 'account_circle',
    7 => 'add_shopping_cart',
    8 => 'alarm',
    9 => 'alarm_add',
    10 => 'alarm_off',
    11 => 'alarm_on',
    12 => 'all_out',
    13 => 'android',
    14 => 'announcement',
    15 => 'aspect_ratio',
    16 => 'assessment',
    17 => 'assignment',
    18 => 'assignment_ind',
    19 => 'assignment_late',
    20 => 'assignment_return',
    21 => 'assignment_returned',
    22 => 'assignment_turned_in',
    23 => 'autorenew',
    24 => 'backup',
    25 => 'book',
    26 => 'bookmark',
    27 => 'bookmark_border',
    28 => 'bug_report',
    29 => 'build',
    30 => 'cached',
    31 => 'camera_enhance',
    32 => 'card_giftcard',
    33 => 'card_membership',
    34 => 'card_travel',
    35 => 'change_history',
    36 => 'check_circle',
    37 => 'chrome_reader_mode',
    38 => 'class',
    39 => 'code',
    40 => 'compare_arrows',
    41 => 'copyright',
    42 => 'credit_card',
    43 => 'dashboard',
    44 => 'date_range',
    45 => 'delete',
    46 => 'description',
    47 => 'dns',
    48 => 'done',
    49 => 'done_all',
    50 => 'donut_large',
    51 => 'donut_small',
    52 => 'eject',
    53 => 'event',
    54 => 'event_seat',
    55 => 'exit_to_app',
    56 => 'explore',
    57 => 'extension',
    58 => 'face',
    59 => 'favorite',
    60 => 'favorite_border',
    61 => 'feedback',
    62 => 'find_in_page',
    63 => 'find_replace',
    64 => 'fingerprint',
    65 => 'flight_land',
    66 => 'flight_takeoff',
    67 => 'flip_to_back',
    68 => 'flip_to_front',
    69 => 'gavel',
    70 => 'get_app',
    71 => 'gif',
    72 => 'grade',
    73 => 'group_work',
    74 => 'help',
    75 => 'help_outline',
    76 => 'highlight_off',
    77 => 'history',
    78 => 'home',
    79 => 'hourglass_empty',
    80 => 'hourglass_full',
    81 => 'http',
    82 => 'https',
    83 => 'important_devices',
    84 => 'info',
    85 => 'info_outline',
    86 => 'input',
    87 => 'invert_colors',
    88 => 'label',
    89 => 'label_outline',
    90 => 'language',
    91 => 'launch',
    92 => 'lightbulb_outline',
    93 => 'line_style',
    94 => 'line_weight',
    95 => 'list',
    96 => 'lock',
    97 => 'lock_open',
    98 => 'lock_outline',
    99 => 'loyalty',
    100 => 'markunread_mailbox',
    101 => 'motorcycle',
    102 => 'note_add',
    103 => 'offline_pin',
    104 => 'opacity',
    105 => 'open_in_browser',
    106 => 'open_in_new',
    107 => 'open_with',
    108 => 'pageview',
    109 => 'pan_tool',
    110 => 'payment',
    111 => 'perm_camera_mic',
    112 => 'perm_contact_calendar',
    113 => 'perm_data_setting',
    114 => 'perm_device_information',
    115 => 'perm_identity',
    116 => 'perm_media',
    117 => 'perm_phone_msg',
    118 => 'perm_scan_wifi',
    119 => 'pets',
    120 => 'picture_in_picture',
    121 => 'picture_in_picture_alt',
    122 => 'play_for_work',
    123 => 'polymer',
    124 => 'power_settings_new',
    125 => 'pregnant_woman',
    126 => 'print',
    127 => 'query_builder',
    128 => 'question_answer',
    129 => 'receipt',
    130 => 'record_voice_over',
    131 => 'redeem',
    132 => 'reorder',
    133 => 'report_problem',
    134 => 'restore',
    135 => 'room',
    136 => 'rounded_corner',
    137 => 'rowing',
    138 => 'schedule',
    139 => 'search',
    140 => 'settings',
    141 => 'settings_applications',
    142 => 'settings_backup_restore',
    143 => 'settings_bluetooth',
    144 => 'settings_brightness',
    145 => 'settings_cell',
    146 => 'settings_ethernet',
    147 => 'settings_input_antenna',
    148 => 'settings_input_component',
    149 => 'settings_input_composite',
    150 => 'settings_input_hdmi',
    151 => 'settings_input_svideo',
    152 => 'settings_overscan',
    153 => 'settings_phone',
    154 => 'settings_power',
    155 => 'settings_remote',
    156 => 'settings_voice',
    157 => 'shop',
    158 => 'shop_two',
    159 => 'shopping_basket',
    160 => 'shopping_cart',
    161 => 'speaker_notes',
    162 => 'spellcheck',
    163 => 'stars',
    164 => 'store',
    165 => 'subject',
    166 => 'supervisor_account',
    167 => 'swap_horiz',
    168 => 'swap_vert',
    169 => 'swap_vertical_circle',
    170 => 'system_update_alt',
    171 => 'tab',
    172 => 'tab_unselected',
    173 => 'theaters',
    174 => 'thumb_down',
    175 => 'thumb_up',
    176 => 'thumbs_up_down',
    177 => 'timeline',
    178 => 'toc',
    179 => 'today',
    180 => 'toll',
    181 => 'touch_app',
    182 => 'track_changes',
    183 => 'translate',
    184 => 'trending_down',
    185 => 'trending_flat',
    186 => 'trending_up',
    187 => 'turned_in',
    188 => 'turned_in_not',
    189 => 'update',
    190 => 'verified_user',
    191 => 'view_agenda',
    192 => 'view_array',
    193 => 'view_carousel',
    194 => 'view_column',
    195 => 'view_day',
    196 => 'view_headline',
    197 => 'view_list',
    198 => 'view_module',
    199 => 'view_quilt',
    200 => 'view_stream',
    201 => 'view_week',
    202 => 'visibility',
    203 => 'visibility_off',
    204 => 'watch_later',
    205 => 'work',
    206 => 'youtube_searched_for',
    207 => 'zoom_in',
    208 => 'zoom_out',
  ),
  'alert' =>
  array (
    0 => 'add_alert',
    1 => 'error',
    2 => 'error_outline',
    3 => 'warning',
  ),
  'av' =>
  array (
    0 => 'add_to_queue',
    1 => 'airplay',
    2 => 'album',
    3 => 'art_track',
    4 => 'av_timer',
    5 => 'closed_caption',
    6 => 'equalizer',
    7 => 'explicit',
    8 => 'fast_forward',
    9 => 'fast_rewind',
    10 => 'fiber_dvr',
    11 => 'fiber_manual_record',
    12 => 'fiber_new',
    13 => 'fiber_pin',
    14 => 'fiber_smart_record',
    15 => 'forward_10',
    16 => 'forward_30',
    17 => 'forward_5',
    18 => 'games',
    19 => 'hd',
    20 => 'hearing',
    21 => 'high_quality',
    22 => 'library_add',
    23 => 'library_books',
    24 => 'library_music',
    25 => 'loop',
    26 => 'mic',
    27 => 'mic_none',
    28 => 'mic_off',
    29 => 'movie',
    30 => 'music_video',
    31 => 'new_releases',
    32 => 'not_interested',
    33 => 'pause',
    34 => 'pause_circle_filled',
    35 => 'pause_circle_outline',
    36 => 'play_arrow',
    37 => 'play_circle_filled',
    38 => 'play_circle_outline',
    39 => 'playlist_add',
    40 => 'playlist_add_check',
    41 => 'playlist_play',
    42 => 'queue',
    43 => 'queue_music',
    44 => 'queue_play_next',
    45 => 'radio',
    46 => 'recent_actors',
    47 => 'remove_from_queue',
    48 => 'repeat',
    49 => 'repeat_one',
    50 => 'replay_10',
    51 => 'replay',
    52 => 'replay_30',
    53 => 'replay_5',
    54 => 'shuffle',
    55 => 'skip_next',
    56 => 'skip_previous',
    57 => 'slow_motion_video',
    58 => 'snooze',
    59 => 'sort_by_alpha',
    60 => 'stop',
    61 => 'subscriptions',
    62 => 'subtitles',
    63 => 'surround_sound',
    64 => 'video_library',
    65 => 'videocam',
    66 => 'videocam_off',
    67 => 'volume_down',
    68 => 'volume_mute',
    69 => 'volume_off',
    70 => 'volume_up',
    71 => 'web',
    72 => 'web_asset',
  ),
  'communication' =>
  array (
    0 => 'business',
    1 => 'call',
    2 => 'call_end',
    3 => 'call_made',
    4 => 'call_merge',
    5 => 'call_missed',
    6 => 'call_missed_outgoing',
    7 => 'call_received',
    8 => 'call_split',
    9 => 'chat',
    10 => 'chat_bubble',
    11 => 'chat_bubble_outline',
    12 => 'clear_all',
    13 => 'comment',
    14 => 'contact_mail',
    15 => 'contact_phone',
    16 => 'contacts',
    17 => 'dialer_sip',
    18 => 'dialpad',
    19 => 'email',
    20 => 'forum',
    21 => 'import_contacts',
    22 => 'import_export',
    23 => 'invert_colors_off',
    24 => 'live_help',
    25 => 'location_off',
    26 => 'location_on',
    27 => 'mail_outline',
    28 => 'message',
    29 => 'no_sim',
    30 => 'phone',
    31 => 'phonelink_erase',
    32 => 'phonelink_lock',
    33 => 'phonelink_ring',
    34 => 'phonelink_setup',
    35 => 'portable_wifi_off',
    36 => 'present_to_all',
    37 => 'ring_volume',
    38 => 'screen_share',
    39 => 'speaker_phone',
    40 => 'stay_current_landscape',
    41 => 'stay_current_portrait',
    42 => 'stay_primary_landscape',
    43 => 'stay_primary_portrait',
    44 => 'stop_screen_share',
    45 => 'swap_calls',
    46 => 'textsms',
    47 => 'voicemail',
    48 => 'vpn_key',
  ),
  'content' =>
  array (
    0 => 'add',
    1 => 'add_box',
    2 => 'add_circle',
    3 => 'add_circle_outline',
    4 => 'archive',
    5 => 'backspace',
    6 => 'block',
    7 => 'clear',
    8 => 'content_copy',
    9 => 'content_cut',
    10 => 'content_paste',
    11 => 'create',
    12 => 'drafts',
    13 => 'filter_list',
    14 => 'flag',
    15 => 'font_download',
    16 => 'forward',
    17 => 'gesture',
    18 => 'inbox',
    19 => 'link',
    20 => 'mail',
    21 => 'markunread',
    22 => 'move_to_inbox',
    23 => 'next_week',
    24 => 'redo',
    25 => 'remove',
    26 => 'remove_circle',
    27 => 'remove_circle_outline',
    28 => 'reply',
    29 => 'reply_all',
    30 => 'report',
    31 => 'save',
    32 => 'select_all',
    33 => 'send',
    34 => 'sort',
    35 => 'text_format',
    36 => 'unarchive',
    37 => 'undo',
    38 => 'weekend',
  ),
  'device' =>
  array (
    0 => 'access_alarm',
    1 => 'access_alarms',
    2 => 'access_time',
    3 => 'add_alarm',
    4 => 'airplanemode_active',
    5 => 'airplanemode_inactive',
    6 => 'airplanemode_off',
    7 => 'airplanemode_on',
    8 => 'battery_20',
    9 => 'battery_30',
    10 => 'battery_50',
    11 => 'battery_60',
    12 => 'battery_80',
    13 => 'battery_90',
    14 => 'battery_alert',
    15 => 'battery_charging_20',
    16 => 'battery_charging_30',
    17 => 'battery_charging_50',
    18 => 'battery_charging_60',
    19 => 'battery_charging_80',
    20 => 'battery_charging_90',
    21 => 'battery_charging_full',
    22 => 'battery_full',
    23 => 'battery_std',
    24 => 'battery_unknown',
    25 => 'bluetooth',
    26 => 'bluetooth_connected',
    27 => 'bluetooth_disabled',
    28 => 'bluetooth_searching',
    29 => 'brightness_auto',
    30 => 'brightness_high',
    31 => 'brightness_low',
    32 => 'brightness_medium',
    33 => 'data_usage',
    34 => 'developer_mode',
    35 => 'devices',
    36 => 'dvr',
    37 => 'gps_fixed',
    38 => 'gps_not_fixed',
    39 => 'gps_off',
    40 => 'graphic_eq',
    41 => 'location_disabled',
    42 => 'location_searching',
    43 => 'multitrack_audio',
    44 => 'network_cell',
    45 => 'network_wifi',
    46 => 'nfc',
    47 => 'now_wallpaper',
    48 => 'now_widgets',
    49 => 'screen_lock_landscape',
    50 => 'screen_lock_portrait',
    51 => 'screen_lock_rotation',
    52 => 'screen_rotation',
    53 => 'sd_storage',
    54 => 'settings_system_daydream',
    55 => 'signal_cellular_0_bar',
    56 => 'signal_cellular_1_bar',
    57 => 'signal_cellular_2_bar',
    58 => 'signal_cellular_3_bar',
    59 => 'signal_cellular_4_bar',
    60 => 'signal_cellular_connected_no_internet_0_bar',
    61 => 'signal_cellular_connected_no_internet_1_bar',
    62 => 'signal_cellular_connected_no_internet_2_bar',
    63 => 'signal_cellular_connected_no_internet_3_bar',
    64 => 'signal_cellular_connected_no_internet_4_bar',
    65 => 'signal_cellular_no_sim',
    66 => 'signal_cellular_null',
    67 => 'signal_cellular_off',
    68 => 'signal_wifi_0_bar',
    69 => 'signal_wifi_1_bar',
    70 => 'signal_wifi_2_bar',
    71 => 'signal_wifi_3_bar',
    72 => 'signal_wifi_4_bar',
    73 => 'signal_wifi_4_bar_lock',
    74 => 'signal_wifi_off',
    75 => 'storage',
    76 => 'usb',
    77 => 'wallpaper',
    78 => 'widgets',
    79 => 'wifi_lock',
    80 => 'wifi_tethering',
  ),
  'editor' =>
  array (
    0 => 'attach_file',
    1 => 'attach_money',
    2 => 'border_all',
    3 => 'border_bottom',
    4 => 'border_clear',
    5 => 'border_color',
    6 => 'border_horizontal',
    7 => 'border_inner',
    8 => 'border_left',
    9 => 'border_outer',
    10 => 'border_right',
    11 => 'border_style',
    12 => 'border_top',
    13 => 'border_vertical',
    14 => 'drag_handle',
    15 => 'format_align_center',
    16 => 'format_align_justify',
    17 => 'format_align_left',
    18 => 'format_align_right',
    19 => 'format_bold',
    20 => 'format_clear',
    21 => 'format_color_fill',
    22 => 'format_color_reset',
    23 => 'format_color_text',
    24 => 'format_indent_decrease',
    25 => 'format_indent_increase',
    26 => 'format_italic',
    27 => 'format_line_spacing',
    28 => 'format_list_bulleted',
    29 => 'format_list_numbered',
    30 => 'format_paint',
    31 => 'format_quote',
    32 => 'format_shapes',
    33 => 'format_size',
    34 => 'format_strikethrough',
    35 => 'format_textdirection_l_to_r',
    36 => 'format_textdirection_r_to_l',
    37 => 'format_underlined',
    38 => 'functions',
    39 => 'highlight',
    40 => 'insert_chart',
    41 => 'insert_comment',
    42 => 'insert_drive_file',
    43 => 'insert_emoticon',
    44 => 'insert_invitation',
    45 => 'insert_link',
    46 => 'insert_photo',
    47 => 'linear_scale',
    48 => 'merge_type',
    49 => 'mode_comment',
    50 => 'mode_edit',
    51 => 'money_off',
    52 => 'publish',
    53 => 'short_text',
    54 => 'space_bar',
    55 => 'strikethrough_s',
    56 => 'text_fields',
    57 => 'vertical_align_bottom',
    58 => 'vertical_align_center',
    59 => 'vertical_align_top',
    60 => 'wrap_text',
  ),
  'file' =>
  array (
    0 => 'attachment',
    1 => 'cloud',
    2 => 'cloud_circle',
    3 => 'cloud_done',
    4 => 'cloud_download',
    5 => 'cloud_off',
    6 => 'cloud_queue',
    7 => 'cloud_upload',
    8 => 'create_new_folder',
    9 => 'file_download',
    10 => 'file_upload',
    11 => 'folder',
    12 => 'folder_open',
    13 => 'folder_shared',
  ),
  'hardware' =>
  array (
    0 => 'cast',
    1 => 'cast_connected',
    2 => 'computer',
    3 => 'desktop_mac',
    4 => 'desktop_windows',
    5 => 'developer_board',
    6 => 'device_hub',
    7 => 'devices_other',
    8 => 'dock',
    9 => 'gamepad',
    10 => 'headset',
    11 => 'headset_mic',
    12 => 'keyboard',
    13 => 'keyboard_arrow_down',
    14 => 'keyboard_arrow_left',
    15 => 'keyboard_arrow_right',
    16 => 'keyboard_arrow_up',
    17 => 'keyboard_backspace',
    18 => 'keyboard_capslock',
    19 => 'keyboard_hide',
    20 => 'keyboard_return',
    21 => 'keyboard_tab',
    22 => 'keyboard_voice',
    23 => 'laptop',
    24 => 'laptop_chromebook',
    25 => 'laptop_mac',
    26 => 'laptop_windows',
    27 => 'memory',
    28 => 'mouse',
    29 => 'phone_android',
    30 => 'phone_iphone',
    31 => 'phonelink',
    32 => 'phonelink_off',
    33 => 'power_input',
    34 => 'router',
    35 => 'scanner',
    36 => 'security',
    37 => 'sim_card',
    38 => 'smartphone',
    39 => 'speaker',
    40 => 'speaker_group',
    41 => 'tablet',
    42 => 'tablet_android',
    43 => 'tablet_mac',
    44 => 'toys',
    45 => 'tv',
    46 => 'videogame_asset',
    47 => 'watch',
  ),
  'image' =>
  array (
    0 => 'add_a_photo',
    1 => 'add_to_photos',
    2 => 'adjust',
    3 => 'assistant',
    4 => 'assistant_photo',
    5 => 'audiotrack',
    6 => 'blur_circular',
    7 => 'blur_linear',
    8 => 'blur_off',
    9 => 'blur_on',
    10 => 'brightness_1',
    11 => 'brightness_2',
    12 => 'brightness_3',
    13 => 'brightness_4',
    14 => 'brightness_5',
    15 => 'brightness_6',
    16 => 'brightness_7',
    17 => 'broken_image',
    18 => 'brush',
    19 => 'camera',
    20 => 'camera_alt',
    21 => 'camera_front',
    22 => 'camera_rear',
    23 => 'camera_roll',
    24 => 'center_focus_strong',
    25 => 'center_focus_weak',
    26 => 'collections',
    27 => 'collections_bookmark',
    28 => 'color_lens',
    29 => 'colorize',
    30 => 'compare',
    31 => 'control_point',
    32 => 'control_point_duplicate',
    33 => 'crop_16_9',
    34 => 'crop',
    35 => 'crop_3_2',
    36 => 'crop_5_4',
    37 => 'crop_7_5',
    38 => 'crop_din',
    39 => 'crop_free',
    40 => 'crop_landscape',
    41 => 'crop_original',
    42 => 'crop_portrait',
    43 => 'crop_rotate',
    44 => 'crop_square',
    45 => 'dehaze',
    46 => 'details',
    47 => 'edit',
    48 => 'exposure',
    49 => 'exposure_neg_1',
    50 => 'exposure_neg_2',
    51 => 'exposure_plus_1',
    52 => 'exposure_plus_2',
    53 => 'exposure_zero',
    54 => 'filter_1',
    55 => 'filter',
    56 => 'filter_2',
    57 => 'filter_3',
    58 => 'filter_4',
    59 => 'filter_5',
    60 => 'filter_6',
    61 => 'filter_7',
    62 => 'filter_8',
    63 => 'filter_9',
    64 => 'filter_9_plus',
    65 => 'filter_b_and_w',
    66 => 'filter_center_focus',
    67 => 'filter_drama',
    68 => 'filter_frames',
    69 => 'filter_hdr',
    70 => 'filter_none',
    71 => 'filter_tilt_shift',
    72 => 'filter_vintage',
    73 => 'flare',
    74 => 'flash_auto',
    75 => 'flash_off',
    76 => 'flash_on',
    77 => 'flip',
    78 => 'gradient',
    79 => 'grain',
    80 => 'grid_off',
    81 => 'grid_on',
    82 => 'hdr_off',
    83 => 'hdr_on',
    84 => 'hdr_strong',
    85 => 'hdr_weak',
    86 => 'healing',
    87 => 'image',
    88 => 'image_aspect_ratio',
    89 => 'iso',
    90 => 'landscape',
    91 => 'leak_add',
    92 => 'leak_remove',
    93 => 'lens',
    94 => 'linked_camera',
    95 => 'looks',
    96 => 'looks_3',
    97 => 'looks_4',
    98 => 'looks_5',
    99 => 'looks_6',
    100 => 'looks_one',
    101 => 'looks_two',
    102 => 'loupe',
    103 => 'monochrome_photos',
    104 => 'movie_creation',
    105 => 'movie_filter',
    106 => 'music_note',
    107 => 'nature',
    108 => 'nature_people',
    109 => 'navigate_before',
    110 => 'navigate_next',
    111 => 'palette',
    112 => 'panorama',
    113 => 'panorama_fish_eye',
    114 => 'panorama_horizontal',
    115 => 'panorama_vertical',
    116 => 'panorama_wide_angle',
    117 => 'photo',
    118 => 'photo_album',
    119 => 'photo_camera',
    120 => 'photo_filter',
    121 => 'photo_library',
    122 => 'photo_size_select_actual',
    123 => 'photo_size_select_large',
    124 => 'photo_size_select_small',
    125 => 'picture_as_pdf',
    126 => 'portrait',
    127 => 'remove_red_eye',
    128 => 'rotate_90_degrees_ccw',
    129 => 'rotate_left',
    130 => 'rotate_right',
    131 => 'slideshow',
    132 => 'straighten',
    133 => 'style',
    134 => 'switch_camera',
    135 => 'switch_video',
    136 => 'tag_faces',
    137 => 'texture',
    138 => 'timelapse',
    139 => 'timer_10',
    140 => 'timer',
    141 => 'timer_3',
    142 => 'timer_off',
    143 => 'tonality',
    144 => 'transform',
    145 => 'tune',
    146 => 'view_comfy',
    147 => 'view_compact',
    148 => 'vignette',
    149 => 'wb_auto',
    150 => 'wb_cloudy',
    151 => 'wb_incandescent',
    152 => 'wb_iridescent',
    153 => 'wb_sunny',
  ),
  'maps' =>
  array (
    0 => 'add_location',
    1 => 'beenhere',
    2 => 'directions',
    3 => 'directions_bike',
    4 => 'directions_boat',
    5 => 'directions_bus',
    6 => 'directions_car',
    7 => 'directions_railway',
    8 => 'directions_run',
    9 => 'directions_subway',
    10 => 'directions_transit',
    11 => 'directions_walk',
    12 => 'edit_location',
    13 => 'flight',
    14 => 'hotel',
    15 => 'layers',
    16 => 'layers_clear',
    17 => 'local_activity',
    18 => 'local_airport',
    19 => 'local_atm',
    20 => 'local_bar',
    21 => 'local_cafe',
    22 => 'local_car_wash',
    23 => 'local_convenience_store',
    24 => 'local_dining',
    25 => 'local_drink',
    26 => 'local_florist',
    27 => 'local_gas_station',
    28 => 'local_grocery_store',
    29 => 'local_hospital',
    30 => 'local_hotel',
    31 => 'local_laundry_service',
    32 => 'local_library',
    33 => 'local_mall',
    34 => 'local_movies',
    35 => 'local_offer',
    36 => 'local_parking',
    37 => 'local_pharmacy',
    38 => 'local_phone',
    39 => 'local_pizza',
    40 => 'local_play',
    41 => 'local_post_office',
    42 => 'local_printshop',
    43 => 'local_see',
    44 => 'local_shipping',
    45 => 'local_taxi',
    46 => 'map',
    47 => 'my_location',
    48 => 'navigation',
    49 => 'near_me',
    50 => 'person_pin',
    51 => 'person_pin_circle',
    52 => 'pin_drop',
    53 => 'place',
    54 => 'rate_review',
    55 => 'restaurant_menu',
    56 => 'satellite',
    57 => 'store_mall_directory',
    58 => 'terrain',
    59 => 'traffic',
    60 => 'zoom_out_map',
  ),
  'navigation' =>
  array (
    0 => 'apps',
    1 => 'arrow_back',
    2 => 'arrow_downward',
    3 => 'arrow_drop_down',
    4 => 'arrow_drop_down_circle',
    5 => 'arrow_drop_up',
    6 => 'arrow_forward',
    7 => 'arrow_upward',
    8 => 'cancel',
    9 => 'check',
    10 => 'chevron_left',
    11 => 'chevron_right',
    12 => 'close',
    13 => 'expand_less',
    14 => 'expand_more',
    15 => 'fullscreen',
    16 => 'fullscreen_exit',
    17 => 'menu',
    18 => 'more_horiz',
    19 => 'more_vert',
    20 => 'refresh',
    21 => 'subdirectory_arrow_left',
    22 => 'subdirectory_arrow_right',
    23 => 'unfold_less',
    24 => 'unfold_more',
  ),
  'notification' =>
  array (
    0 => 'adb',
    1 => 'airline_seat_flat',
    2 => 'airline_seat_flat_angled',
    3 => 'airline_seat_individual_suite',
    4 => 'airline_seat_legroom_extra',
    5 => 'airline_seat_legroom_normal',
    6 => 'airline_seat_legroom_reduced',
    7 => 'airline_seat_recline_extra',
    8 => 'airline_seat_recline_normal',
    9 => 'bluetooth_audio',
    10 => 'confirmation_number',
    11 => 'disc_full',
    12 => 'do_not_disturb',
    13 => 'do_not_disturb_alt',
    14 => 'drive_eta',
    15 => 'enhanced_encryption',
    16 => 'event_available',
    17 => 'event_busy',
    18 => 'event_note',
    19 => 'folder_special',
    20 => 'live_tv',
    21 => 'mms',
    22 => 'more',
    23 => 'network_check',
    24 => 'network_locked',
    25 => 'no_encryption',
    26 => 'ondemand_video',
    27 => 'personal_video',
    28 => 'phone_bluetooth_speaker',
    29 => 'phone_forwarded',
    30 => 'phone_in_talk',
    31 => 'phone_locked',
    32 => 'phone_missed',
    33 => 'phone_paused',
    34 => 'power',
    35 => 'rv_hookup',
    36 => 'sd_card',
    37 => 'sim_card_alert',
    38 => 'sms',
    39 => 'sms_failed',
    40 => 'sync',
    41 => 'sync_disabled',
    42 => 'sync_problem',
    43 => 'system_update',
    44 => 'tap_and_play',
    45 => 'time_to_leave',
    46 => 'vibration',
    47 => 'voice_chat',
    48 => 'vpn_lock',
    49 => 'wc',
    50 => 'wifi',
  ),
  'places' =>
  array (
    0 => 'ac_unit',
    1 => 'airport_shuttle',
    2 => 'all_inclusive',
    3 => 'beach_access',
    4 => 'business_center',
    5 => 'casino',
    6 => 'child_care',
    7 => 'child_friendly',
    8 => 'fitness_center',
    9 => 'free_breakfast',
    10 => 'golf_course',
    11 => 'hot_tub',
    12 => 'kitchen',
    13 => 'pool',
    14 => 'room_service',
    15 => 'smoke_free',
    16 => 'smoking_rooms',
    17 => 'spa',
  ),
  'social' =>
  array (
    0 => 'cake',
    1 => 'domain',
    2 => 'group',
    3 => 'group_add',
    4 => 'location_city',
    5 => 'mood',
    6 => 'mood_bad',
    7 => 'notifications',
    8 => 'notifications_active',
    9 => 'notifications_none',
    10 => 'notifications_off',
    11 => 'notifications_paused',
    12 => 'pages',
    13 => 'party_mode',
    14 => 'people',
    15 => 'people_outline',
    16 => 'person',
    17 => 'person_add',
    18 => 'person_outline',
    19 => 'plus_one',
    20 => 'poll',
    21 => 'public',
    22 => 'school',
    23 => 'share',
    24 => 'whatshot',
  ),
  'toggle' =>
  array (
    0 => 'check_box',
    1 => 'check_box_outline_blank',
    2 => 'indeterminate_check_box',
    3 => 'radio_button_checked',
    4 => 'radio_button_unchecked',
    5 => 'star',
    6 => 'star_border',
    7 => 'star_half',
  ),
);



$material_icon_refs = array (
  '3d_rotation' => 'action',
  'ac_unit' => 'places',
  'access_alarm' => 'device',
  'access_alarms' => 'device',
  'access_time' => 'device',
  'accessibility' => 'action',
  'accessible' => 'action',
  'account_balance' => 'action',
  'account_balance_wallet' => 'action',
  'account_box' => 'action',
  'account_circle' => 'action',
  'adb' => 'notification',
  'add' => 'content',
  'add_a_photo' => 'image',
  'add_alarm' => 'device',
  'add_alert' => 'alert',
  'add_box' => 'content',
  'add_circle' => 'content',
  'add_circle_outline' => 'content',
  'add_location' => 'maps',
  'add_shopping_cart' => 'action',
  'add_to_photos' => 'image',
  'add_to_queue' => 'av',
  'adjust' => 'image',
  'airline_seat_flat' => 'notification',
  'airline_seat_flat_angled' => 'notification',
  'airline_seat_individual_suite' => 'notification',
  'airline_seat_legroom_extra' => 'notification',
  'airline_seat_legroom_normal' => 'notification',
  'airline_seat_legroom_reduced' => 'notification',
  'airline_seat_recline_extra' => 'notification',
  'airline_seat_recline_normal' => 'notification',
  'airplanemode_active' => 'device',
  'airplanemode_inactive' => 'device',
  'airplanemode_off' => 'device',
  'airplanemode_on' => 'device',
  'airplay' => 'av',
  'airport_shuttle' => 'places',
  'alarm' => 'action',
  'alarm_add' => 'action',
  'alarm_off' => 'action',
  'alarm_on' => 'action',
  'album' => 'av',
  'all_inclusive' => 'places',
  'all_out' => 'action',
  'android' => 'action',
  'announcement' => 'action',
  'apps' => 'navigation',
  'archive' => 'content',
  'arrow_back' => 'navigation',
  'arrow_downward' => 'navigation',
  'arrow_drop_down' => 'navigation',
  'arrow_drop_down_circle' => 'navigation',
  'arrow_drop_up' => 'navigation',
  'arrow_forward' => 'navigation',
  'arrow_upward' => 'navigation',
  'art_track' => 'av',
  'aspect_ratio' => 'action',
  'assessment' => 'action',
  'assignment' => 'action',
  'assignment_ind' => 'action',
  'assignment_late' => 'action',
  'assignment_return' => 'action',
  'assignment_returned' => 'action',
  'assignment_turned_in' => 'action',
  'assistant' => 'image',
  'assistant_photo' => 'image',
  'attach_file' => 'editor',
  'attach_money' => 'editor',
  'attachment' => 'file',
  'audiotrack' => 'image',
  'autorenew' => 'action',
  'av_timer' => 'av',
  'backspace' => 'content',
  'backup' => 'action',
  'battery_20' => 'device',
  'battery_30' => 'device',
  'battery_50' => 'device',
  'battery_60' => 'device',
  'battery_80' => 'device',
  'battery_90' => 'device',
  'battery_alert' => 'device',
  'battery_charging_20' => 'device',
  'battery_charging_30' => 'device',
  'battery_charging_50' => 'device',
  'battery_charging_60' => 'device',
  'battery_charging_80' => 'device',
  'battery_charging_90' => 'device',
  'battery_charging_full' => 'device',
  'battery_full' => 'device',
  'battery_std' => 'device',
  'battery_unknown' => 'device',
  'beach_access' => 'places',
  'beenhere' => 'maps',
  'block' => 'content',
  'bluetooth' => 'device',
  'bluetooth_audio' => 'notification',
  'bluetooth_connected' => 'device',
  'bluetooth_disabled' => 'device',
  'bluetooth_searching' => 'device',
  'blur_circular' => 'image',
  'blur_linear' => 'image',
  'blur_off' => 'image',
  'blur_on' => 'image',
  'book' => 'action',
  'bookmark' => 'action',
  'bookmark_border' => 'action',
  'border_all' => 'editor',
  'border_bottom' => 'editor',
  'border_clear' => 'editor',
  'border_color' => 'editor',
  'border_horizontal' => 'editor',
  'border_inner' => 'editor',
  'border_left' => 'editor',
  'border_outer' => 'editor',
  'border_right' => 'editor',
  'border_style' => 'editor',
  'border_top' => 'editor',
  'border_vertical' => 'editor',
  'brightness_1' => 'image',
  'brightness_2' => 'image',
  'brightness_3' => 'image',
  'brightness_4' => 'image',
  'brightness_5' => 'image',
  'brightness_6' => 'image',
  'brightness_7' => 'image',
  'brightness_auto' => 'device',
  'brightness_high' => 'device',
  'brightness_low' => 'device',
  'brightness_medium' => 'device',
  'broken_image' => 'image',
  'brush' => 'image',
  'bug_report' => 'action',
  'build' => 'action',
  'business' => 'communication',
  'business_center' => 'places',
  'cached' => 'action',
  'cake' => 'social',
  'call' => 'communication',
  'call_end' => 'communication',
  'call_made' => 'communication',
  'call_merge' => 'communication',
  'call_missed' => 'communication',
  'call_missed_outgoing' => 'communication',
  'call_received' => 'communication',
  'call_split' => 'communication',
  'camera' => 'image',
  'camera_alt' => 'image',
  'camera_enhance' => 'action',
  'camera_front' => 'image',
  'camera_rear' => 'image',
  'camera_roll' => 'image',
  'cancel' => 'navigation',
  'card_giftcard' => 'action',
  'card_membership' => 'action',
  'card_travel' => 'action',
  'casino' => 'places',
  'cast' => 'hardware',
  'cast_connected' => 'hardware',
  'center_focus_strong' => 'image',
  'center_focus_weak' => 'image',
  'change_history' => 'action',
  'chat' => 'communication',
  'chat_bubble' => 'communication',
  'chat_bubble_outline' => 'communication',
  'check' => 'navigation',
  'check_box' => 'toggle',
  'check_box_outline_blank' => 'toggle',
  'check_circle' => 'action',
  'chevron_left' => 'navigation',
  'chevron_right' => 'navigation',
  'child_care' => 'places',
  'child_friendly' => 'places',
  'chrome_reader_mode' => 'action',
  'class' => 'action',
  'clear' => 'content',
  'clear_all' => 'communication',
  'close' => 'navigation',
  'closed_caption' => 'av',
  'cloud' => 'file',
  'cloud_circle' => 'file',
  'cloud_done' => 'file',
  'cloud_download' => 'file',
  'cloud_off' => 'file',
  'cloud_queue' => 'file',
  'cloud_upload' => 'file',
  'code' => 'action',
  'collections' => 'image',
  'collections_bookmark' => 'image',
  'color_lens' => 'image',
  'colorize' => 'image',
  'comment' => 'communication',
  'compare' => 'image',
  'compare_arrows' => 'action',
  'computer' => 'hardware',
  'confirmation_number' => 'notification',
  'contact_mail' => 'communication',
  'contact_phone' => 'communication',
  'contacts' => 'communication',
  'content_copy' => 'content',
  'content_cut' => 'content',
  'content_paste' => 'content',
  'control_point' => 'image',
  'control_point_duplicate' => 'image',
  'copyright' => 'action',
  'create' => 'content',
  'create_new_folder' => 'file',
  'credit_card' => 'action',
  'crop' => 'image',
  'crop_16_9' => 'image',
  'crop_3_2' => 'image',
  'crop_5_4' => 'image',
  'crop_7_5' => 'image',
  'crop_din' => 'image',
  'crop_free' => 'image',
  'crop_landscape' => 'image',
  'crop_original' => 'image',
  'crop_portrait' => 'image',
  'crop_rotate' => 'image',
  'crop_square' => 'image',
  'dashboard' => 'action',
  'data_usage' => 'device',
  'date_range' => 'action',
  'dehaze' => 'image',
  'delete' => 'action',
  'description' => 'action',
  'desktop_mac' => 'hardware',
  'desktop_windows' => 'hardware',
  'details' => 'image',
  'developer_board' => 'hardware',
  'developer_mode' => 'device',
  'device_hub' => 'hardware',
  'devices' => 'device',
  'devices_other' => 'hardware',
  'dialer_sip' => 'communication',
  'dialpad' => 'communication',
  'directions' => 'maps',
  'directions_bike' => 'maps',
  'directions_boat' => 'maps',
  'directions_bus' => 'maps',
  'directions_car' => 'maps',
  'directions_railway' => 'maps',
  'directions_run' => 'maps',
  'directions_subway' => 'maps',
  'directions_transit' => 'maps',
  'directions_walk' => 'maps',
  'disc_full' => 'notification',
  'dns' => 'action',
  'do_not_disturb' => 'notification',
  'do_not_disturb_alt' => 'notification',
  'dock' => 'hardware',
  'domain' => 'social',
  'done' => 'action',
  'done_all' => 'action',
  'donut_large' => 'action',
  'donut_small' => 'action',
  'drafts' => 'content',
  'drag_handle' => 'editor',
  'drive_eta' => 'notification',
  'dvr' => 'device',
  'edit' => 'image',
  'edit_location' => 'maps',
  'eject' => 'action',
  'email' => 'communication',
  'enhanced_encryption' => 'notification',
  'equalizer' => 'av',
  'error' => 'alert',
  'error_outline' => 'alert',
  'event' => 'action',
  'event_available' => 'notification',
  'event_busy' => 'notification',
  'event_note' => 'notification',
  'event_seat' => 'action',
  'exit_to_app' => 'action',
  'expand_less' => 'navigation',
  'expand_more' => 'navigation',
  'explicit' => 'av',
  'explore' => 'action',
  'exposure' => 'image',
  'exposure_neg_1' => 'image',
  'exposure_neg_2' => 'image',
  'exposure_plus_1' => 'image',
  'exposure_plus_2' => 'image',
  'exposure_zero' => 'image',
  'extension' => 'action',
  'face' => 'action',
  'fast_forward' => 'av',
  'fast_rewind' => 'av',
  'favorite' => 'action',
  'favorite_border' => 'action',
  'feedback' => 'action',
  'fiber_dvr' => 'av',
  'fiber_manual_record' => 'av',
  'fiber_new' => 'av',
  'fiber_pin' => 'av',
  'fiber_smart_record' => 'av',
  'file_download' => 'file',
  'file_upload' => 'file',
  'filter' => 'image',
  'filter_1' => 'image',
  'filter_2' => 'image',
  'filter_3' => 'image',
  'filter_4' => 'image',
  'filter_5' => 'image',
  'filter_6' => 'image',
  'filter_7' => 'image',
  'filter_8' => 'image',
  'filter_9' => 'image',
  'filter_9_plus' => 'image',
  'filter_b_and_w' => 'image',
  'filter_center_focus' => 'image',
  'filter_drama' => 'image',
  'filter_frames' => 'image',
  'filter_hdr' => 'image',
  'filter_list' => 'content',
  'filter_none' => 'image',
  'filter_tilt_shift' => 'image',
  'filter_vintage' => 'image',
  'find_in_page' => 'action',
  'find_replace' => 'action',
  'fingerprint' => 'action',
  'fitness_center' => 'places',
  'flag' => 'content',
  'flare' => 'image',
  'flash_auto' => 'image',
  'flash_off' => 'image',
  'flash_on' => 'image',
  'flight' => 'maps',
  'flight_land' => 'action',
  'flight_takeoff' => 'action',
  'flip' => 'image',
  'flip_to_back' => 'action',
  'flip_to_front' => 'action',
  'folder' => 'file',
  'folder_open' => 'file',
  'folder_shared' => 'file',
  'folder_special' => 'notification',
  'font_download' => 'content',
  'format_align_center' => 'editor',
  'format_align_justify' => 'editor',
  'format_align_left' => 'editor',
  'format_align_right' => 'editor',
  'format_bold' => 'editor',
  'format_clear' => 'editor',
  'format_color_fill' => 'editor',
  'format_color_reset' => 'editor',
  'format_color_text' => 'editor',
  'format_indent_decrease' => 'editor',
  'format_indent_increase' => 'editor',
  'format_italic' => 'editor',
  'format_line_spacing' => 'editor',
  'format_list_bulleted' => 'editor',
  'format_list_numbered' => 'editor',
  'format_paint' => 'editor',
  'format_quote' => 'editor',
  'format_shapes' => 'editor',
  'format_size' => 'editor',
  'format_strikethrough' => 'editor',
  'format_textdirection_l_to_r' => 'editor',
  'format_textdirection_r_to_l' => 'editor',
  'format_underlined' => 'editor',
  'forum' => 'communication',
  'forward' => 'content',
  'forward_10' => 'av',
  'forward_30' => 'av',
  'forward_5' => 'av',
  'free_breakfast' => 'places',
  'fullscreen' => 'navigation',
  'fullscreen_exit' => 'navigation',
  'functions' => 'editor',
  'gamepad' => 'hardware',
  'games' => 'av',
  'gavel' => 'action',
  'gesture' => 'content',
  'get_app' => 'action',
  'gif' => 'action',
  'golf_course' => 'places',
  'gps_fixed' => 'device',
  'gps_not_fixed' => 'device',
  'gps_off' => 'device',
  'grade' => 'action',
  'gradient' => 'image',
  'grain' => 'image',
  'graphic_eq' => 'device',
  'grid_off' => 'image',
  'grid_on' => 'image',
  'group' => 'social',
  'group_add' => 'social',
  'group_work' => 'action',
  'hd' => 'av',
  'hdr_off' => 'image',
  'hdr_on' => 'image',
  'hdr_strong' => 'image',
  'hdr_weak' => 'image',
  'headset' => 'hardware',
  'headset_mic' => 'hardware',
  'healing' => 'image',
  'hearing' => 'av',
  'help' => 'action',
  'help_outline' => 'action',
  'high_quality' => 'av',
  'highlight' => 'editor',
  'highlight_off' => 'action',
  'history' => 'action',
  'home' => 'action',
  'hot_tub' => 'places',
  'hotel' => 'maps',
  'hourglass_empty' => 'action',
  'hourglass_full' => 'action',
  'http' => 'action',
  'https' => 'action',
  'image' => 'image',
  'image_aspect_ratio' => 'image',
  'import_contacts' => 'communication',
  'import_export' => 'communication',
  'important_devices' => 'action',
  'inbox' => 'content',
  'indeterminate_check_box' => 'toggle',
  'info' => 'action',
  'info_outline' => 'action',
  'input' => 'action',
  'insert_chart' => 'editor',
  'insert_comment' => 'editor',
  'insert_drive_file' => 'editor',
  'insert_emoticon' => 'editor',
  'insert_invitation' => 'editor',
  'insert_link' => 'editor',
  'insert_photo' => 'editor',
  'invert_colors' => 'action',
  'invert_colors_off' => 'communication',
  'iso' => 'image',
  'keyboard' => 'hardware',
  'keyboard_arrow_down' => 'hardware',
  'keyboard_arrow_left' => 'hardware',
  'keyboard_arrow_right' => 'hardware',
  'keyboard_arrow_up' => 'hardware',
  'keyboard_backspace' => 'hardware',
  'keyboard_capslock' => 'hardware',
  'keyboard_hide' => 'hardware',
  'keyboard_return' => 'hardware',
  'keyboard_tab' => 'hardware',
  'keyboard_voice' => 'hardware',
  'kitchen' => 'places',
  'label' => 'action',
  'label_outline' => 'action',
  'landscape' => 'image',
  'language' => 'action',
  'laptop' => 'hardware',
  'laptop_chromebook' => 'hardware',
  'laptop_mac' => 'hardware',
  'laptop_windows' => 'hardware',
  'launch' => 'action',
  'layers' => 'maps',
  'layers_clear' => 'maps',
  'leak_add' => 'image',
  'leak_remove' => 'image',
  'lens' => 'image',
  'library_add' => 'av',
  'library_books' => 'av',
  'library_music' => 'av',
  'lightbulb_outline' => 'action',
  'line_style' => 'action',
  'line_weight' => 'action',
  'linear_scale' => 'editor',
  'link' => 'content',
  'linked_camera' => 'image',
  'list' => 'action',
  'live_help' => 'communication',
  'live_tv' => 'notification',
  'local_activity' => 'maps',
  'local_airport' => 'maps',
  'local_atm' => 'maps',
  'local_bar' => 'maps',
  'local_cafe' => 'maps',
  'local_car_wash' => 'maps',
  'local_convenience_store' => 'maps',
  'local_dining' => 'maps',
  'local_drink' => 'maps',
  'local_florist' => 'maps',
  'local_gas_station' => 'maps',
  'local_grocery_store' => 'maps',
  'local_hospital' => 'maps',
  'local_hotel' => 'maps',
  'local_laundry_service' => 'maps',
  'local_library' => 'maps',
  'local_mall' => 'maps',
  'local_movies' => 'maps',
  'local_offer' => 'maps',
  'local_parking' => 'maps',
  'local_pharmacy' => 'maps',
  'local_phone' => 'maps',
  'local_pizza' => 'maps',
  'local_play' => 'maps',
  'local_post_office' => 'maps',
  'local_printshop' => 'maps',
  'local_see' => 'maps',
  'local_shipping' => 'maps',
  'local_taxi' => 'maps',
  'location_city' => 'social',
  'location_disabled' => 'device',
  'location_off' => 'communication',
  'location_on' => 'communication',
  'location_searching' => 'device',
  'lock' => 'action',
  'lock_open' => 'action',
  'lock_outline' => 'action',
  'looks' => 'image',
  'looks_3' => 'image',
  'looks_4' => 'image',
  'looks_5' => 'image',
  'looks_6' => 'image',
  'looks_one' => 'image',
  'looks_two' => 'image',
  'loop' => 'av',
  'loupe' => 'image',
  'loyalty' => 'action',
  'mail' => 'content',
  'mail_outline' => 'communication',
  'map' => 'maps',
  'markunread' => 'content',
  'markunread_mailbox' => 'action',
  'memory' => 'hardware',
  'menu' => 'navigation',
  'merge_type' => 'editor',
  'message' => 'communication',
  'mic' => 'av',
  'mic_none' => 'av',
  'mic_off' => 'av',
  'mms' => 'notification',
  'mode_comment' => 'editor',
  'mode_edit' => 'editor',
  'money_off' => 'editor',
  'monochrome_photos' => 'image',
  'mood' => 'social',
  'mood_bad' => 'social',
  'more' => 'notification',
  'more_horiz' => 'navigation',
  'more_vert' => 'navigation',
  'motorcycle' => 'action',
  'mouse' => 'hardware',
  'move_to_inbox' => 'content',
  'movie' => 'av',
  'movie_creation' => 'image',
  'movie_filter' => 'image',
  'multitrack_audio' => 'device',
  'music_note' => 'image',
  'music_video' => 'av',
  'my_location' => 'maps',
  'nature' => 'image',
  'nature_people' => 'image',
  'navigate_before' => 'image',
  'navigate_next' => 'image',
  'navigation' => 'maps',
  'near_me' => 'maps',
  'network_cell' => 'device',
  'network_check' => 'notification',
  'network_locked' => 'notification',
  'network_wifi' => 'device',
  'new_releases' => 'av',
  'next_week' => 'content',
  'nfc' => 'device',
  'no_encryption' => 'notification',
  'no_sim' => 'communication',
  'not_interested' => 'av',
  'note_add' => 'action',
  'notifications' => 'social',
  'notifications_active' => 'social',
  'notifications_none' => 'social',
  'notifications_off' => 'social',
  'notifications_paused' => 'social',
  'now_wallpaper' => 'device',
  'now_widgets' => 'device',
  'offline_pin' => 'action',
  'ondemand_video' => 'notification',
  'opacity' => 'action',
  'open_in_browser' => 'action',
  'open_in_new' => 'action',
  'open_with' => 'action',
  'pages' => 'social',
  'pageview' => 'action',
  'palette' => 'image',
  'pan_tool' => 'action',
  'panorama' => 'image',
  'panorama_fish_eye' => 'image',
  'panorama_horizontal' => 'image',
  'panorama_vertical' => 'image',
  'panorama_wide_angle' => 'image',
  'party_mode' => 'social',
  'pause' => 'av',
  'pause_circle_filled' => 'av',
  'pause_circle_outline' => 'av',
  'payment' => 'action',
  'people' => 'social',
  'people_outline' => 'social',
  'perm_camera_mic' => 'action',
  'perm_contact_calendar' => 'action',
  'perm_data_setting' => 'action',
  'perm_device_information' => 'action',
  'perm_identity' => 'action',
  'perm_media' => 'action',
  'perm_phone_msg' => 'action',
  'perm_scan_wifi' => 'action',
  'person' => 'social',
  'person_add' => 'social',
  'person_outline' => 'social',
  'person_pin' => 'maps',
  'person_pin_circle' => 'maps',
  'personal_video' => 'notification',
  'pets' => 'action',
  'phone' => 'communication',
  'phone_android' => 'hardware',
  'phone_bluetooth_speaker' => 'notification',
  'phone_forwarded' => 'notification',
  'phone_in_talk' => 'notification',
  'phone_iphone' => 'hardware',
  'phone_locked' => 'notification',
  'phone_missed' => 'notification',
  'phone_paused' => 'notification',
  'phonelink' => 'hardware',
  'phonelink_erase' => 'communication',
  'phonelink_lock' => 'communication',
  'phonelink_off' => 'hardware',
  'phonelink_ring' => 'communication',
  'phonelink_setup' => 'communication',
  'photo' => 'image',
  'photo_album' => 'image',
  'photo_camera' => 'image',
  'photo_filter' => 'image',
  'photo_library' => 'image',
  'photo_size_select_actual' => 'image',
  'photo_size_select_large' => 'image',
  'photo_size_select_small' => 'image',
  'picture_as_pdf' => 'image',
  'picture_in_picture' => 'action',
  'picture_in_picture_alt' => 'action',
  'pin_drop' => 'maps',
  'place' => 'maps',
  'play_arrow' => 'av',
  'play_circle_filled' => 'av',
  'play_circle_outline' => 'av',
  'play_for_work' => 'action',
  'playlist_add' => 'av',
  'playlist_add_check' => 'av',
  'playlist_play' => 'av',
  'plus_one' => 'social',
  'poll' => 'social',
  'polymer' => 'action',
  'pool' => 'places',
  'portable_wifi_off' => 'communication',
  'portrait' => 'image',
  'power' => 'notification',
  'power_input' => 'hardware',
  'power_settings_new' => 'action',
  'pregnant_woman' => 'action',
  'present_to_all' => 'communication',
  'print' => 'action',
  'public' => 'social',
  'publish' => 'editor',
  'query_builder' => 'action',
  'question_answer' => 'action',
  'queue' => 'av',
  'queue_music' => 'av',
  'queue_play_next' => 'av',
  'radio' => 'av',
  'radio_button_checked' => 'toggle',
  'radio_button_unchecked' => 'toggle',
  'rate_review' => 'maps',
  'receipt' => 'action',
  'recent_actors' => 'av',
  'record_voice_over' => 'action',
  'redeem' => 'action',
  'redo' => 'content',
  'refresh' => 'navigation',
  'remove' => 'content',
  'remove_circle' => 'content',
  'remove_circle_outline' => 'content',
  'remove_from_queue' => 'av',
  'remove_red_eye' => 'image',
  'reorder' => 'action',
  'repeat' => 'av',
  'repeat_one' => 'av',
  'replay' => 'av',
  'replay_10' => 'av',
  'replay_30' => 'av',
  'replay_5' => 'av',
  'reply' => 'content',
  'reply_all' => 'content',
  'report' => 'content',
  'report_problem' => 'action',
  'restaurant_menu' => 'maps',
  'restore' => 'action',
  'ring_volume' => 'communication',
  'room' => 'action',
  'room_service' => 'places',
  'rotate_90_degrees_ccw' => 'image',
  'rotate_left' => 'image',
  'rotate_right' => 'image',
  'rounded_corner' => 'action',
  'router' => 'hardware',
  'rowing' => 'action',
  'rv_hookup' => 'notification',
  'satellite' => 'maps',
  'save' => 'content',
  'scanner' => 'hardware',
  'schedule' => 'action',
  'school' => 'social',
  'screen_lock_landscape' => 'device',
  'screen_lock_portrait' => 'device',
  'screen_lock_rotation' => 'device',
  'screen_rotation' => 'device',
  'screen_share' => 'communication',
  'sd_card' => 'notification',
  'sd_storage' => 'device',
  'search' => 'action',
  'security' => 'hardware',
  'select_all' => 'content',
  'send' => 'content',
  'settings' => 'action',
  'settings_applications' => 'action',
  'settings_backup_restore' => 'action',
  'settings_bluetooth' => 'action',
  'settings_brightness' => 'action',
  'settings_cell' => 'action',
  'settings_ethernet' => 'action',
  'settings_input_antenna' => 'action',
  'settings_input_component' => 'action',
  'settings_input_composite' => 'action',
  'settings_input_hdmi' => 'action',
  'settings_input_svideo' => 'action',
  'settings_overscan' => 'action',
  'settings_phone' => 'action',
  'settings_power' => 'action',
  'settings_remote' => 'action',
  'settings_system_daydream' => 'device',
  'settings_voice' => 'action',
  'share' => 'social',
  'shop' => 'action',
  'shop_two' => 'action',
  'shopping_basket' => 'action',
  'shopping_cart' => 'action',
  'short_text' => 'editor',
  'shuffle' => 'av',
  'signal_cellular_0_bar' => 'device',
  'signal_cellular_1_bar' => 'device',
  'signal_cellular_2_bar' => 'device',
  'signal_cellular_3_bar' => 'device',
  'signal_cellular_4_bar' => 'device',
  'signal_cellular_connected_no_internet_0_bar' => 'device',
  'signal_cellular_connected_no_internet_1_bar' => 'device',
  'signal_cellular_connected_no_internet_2_bar' => 'device',
  'signal_cellular_connected_no_internet_3_bar' => 'device',
  'signal_cellular_connected_no_internet_4_bar' => 'device',
  'signal_cellular_no_sim' => 'device',
  'signal_cellular_null' => 'device',
  'signal_cellular_off' => 'device',
  'signal_wifi_0_bar' => 'device',
  'signal_wifi_1_bar' => 'device',
  'signal_wifi_2_bar' => 'device',
  'signal_wifi_3_bar' => 'device',
  'signal_wifi_4_bar' => 'device',
  'signal_wifi_4_bar_lock' => 'device',
  'signal_wifi_off' => 'device',
  'sim_card' => 'hardware',
  'sim_card_alert' => 'notification',
  'skip_next' => 'av',
  'skip_previous' => 'av',
  'slideshow' => 'image',
  'slow_motion_video' => 'av',
  'smartphone' => 'hardware',
  'smoke_free' => 'places',
  'smoking_rooms' => 'places',
  'sms' => 'notification',
  'sms_failed' => 'notification',
  'snooze' => 'av',
  'sort' => 'content',
  'sort_by_alpha' => 'av',
  'spa' => 'places',
  'space_bar' => 'editor',
  'speaker' => 'hardware',
  'speaker_group' => 'hardware',
  'speaker_notes' => 'action',
  'speaker_phone' => 'communication',
  'spellcheck' => 'action',
  'star' => 'toggle',
  'star_border' => 'toggle',
  'star_half' => 'toggle',
  'stars' => 'action',
  'stay_current_landscape' => 'communication',
  'stay_current_portrait' => 'communication',
  'stay_primary_landscape' => 'communication',
  'stay_primary_portrait' => 'communication',
  'stop' => 'av',
  'stop_screen_share' => 'communication',
  'storage' => 'device',
  'store' => 'action',
  'store_mall_directory' => 'maps',
  'straighten' => 'image',
  'strikethrough_s' => 'editor',
  'style' => 'image',
  'subdirectory_arrow_left' => 'navigation',
  'subdirectory_arrow_right' => 'navigation',
  'subject' => 'action',
  'subscriptions' => 'av',
  'subtitles' => 'av',
  'supervisor_account' => 'action',
  'surround_sound' => 'av',
  'swap_calls' => 'communication',
  'swap_horiz' => 'action',
  'swap_vert' => 'action',
  'swap_vertical_circle' => 'action',
  'switch_camera' => 'image',
  'switch_video' => 'image',
  'sync' => 'notification',
  'sync_disabled' => 'notification',
  'sync_problem' => 'notification',
  'system_update' => 'notification',
  'system_update_alt' => 'action',
  'tab' => 'action',
  'tab_unselected' => 'action',
  'tablet' => 'hardware',
  'tablet_android' => 'hardware',
  'tablet_mac' => 'hardware',
  'tag_faces' => 'image',
  'tap_and_play' => 'notification',
  'terrain' => 'maps',
  'text_fields' => 'editor',
  'text_format' => 'content',
  'textsms' => 'communication',
  'texture' => 'image',
  'theaters' => 'action',
  'thumb_down' => 'action',
  'thumb_up' => 'action',
  'thumbs_up_down' => 'action',
  'time_to_leave' => 'notification',
  'timelapse' => 'image',
  'timeline' => 'action',
  'timer' => 'image',
  'timer_10' => 'image',
  'timer_3' => 'image',
  'timer_off' => 'image',
  'toc' => 'action',
  'today' => 'action',
  'toll' => 'action',
  'tonality' => 'image',
  'touch_app' => 'action',
  'toys' => 'hardware',
  'track_changes' => 'action',
  'traffic' => 'maps',
  'transform' => 'image',
  'translate' => 'action',
  'trending_down' => 'action',
  'trending_flat' => 'action',
  'trending_up' => 'action',
  'tune' => 'image',
  'turned_in' => 'action',
  'turned_in_not' => 'action',
  'tv' => 'hardware',
  'unarchive' => 'content',
  'undo' => 'content',
  'unfold_less' => 'navigation',
  'unfold_more' => 'navigation',
  'update' => 'action',
  'usb' => 'device',
  'verified_user' => 'action',
  'vertical_align_bottom' => 'editor',
  'vertical_align_center' => 'editor',
  'vertical_align_top' => 'editor',
  'vibration' => 'notification',
  'video_library' => 'av',
  'videocam' => 'av',
  'videocam_off' => 'av',
  'videogame_asset' => 'hardware',
  'view_agenda' => 'action',
  'view_array' => 'action',
  'view_carousel' => 'action',
  'view_column' => 'action',
  'view_comfy' => 'image',
  'view_compact' => 'image',
  'view_day' => 'action',
  'view_headline' => 'action',
  'view_list' => 'action',
  'view_module' => 'action',
  'view_quilt' => 'action',
  'view_stream' => 'action',
  'view_week' => 'action',
  'vignette' => 'image',
  'visibility' => 'action',
  'visibility_off' => 'action',
  'voice_chat' => 'notification',
  'voicemail' => 'communication',
  'volume_down' => 'av',
  'volume_mute' => 'av',
  'volume_off' => 'av',
  'volume_up' => 'av',
  'vpn_key' => 'communication',
  'vpn_lock' => 'notification',
  'wallpaper' => 'device',
  'warning' => 'alert',
  'watch' => 'hardware',
  'watch_later' => 'action',
  'wb_auto' => 'image',
  'wb_cloudy' => 'image',
  'wb_incandescent' => 'image',
  'wb_iridescent' => 'image',
  'wb_sunny' => 'image',
  'wc' => 'notification',
  'web' => 'av',
  'web_asset' => 'av',
  'weekend' => 'content',
  'whatshot' => 'social',
  'widgets' => 'device',
  'wifi' => 'notification',
  'wifi_lock' => 'device',
  'wifi_tethering' => 'device',
  'work' => 'action',
  'wrap_text' => 'editor',
  'youtube_searched_for' => 'action',
  'zoom_in' => 'action',
  'zoom_out' => 'action',
  'zoom_out_map' => 'maps',
);