gelbooru.com (clean dark CSS)

@-moz-document regexp("(http|https)://(gelbooru).(com)/.*")
    {
    div#note-container
        {
              color:#000000 !important;
        }
/* Main bg and text color, image borders */
    body
        {
            background: #121212 !important;
            color:#FFFFFF !important;
        }


    table,table.form th
        {
            color:#AAAAAA !important;
        }

    .thumbnail-preview
        {
            background: #000000 !important;
            padding:0px !important;
            border: 3px solid #212121 !important;
        }

    div.header,.navbar
        {
            background: #212121 !important;
        }

/* Navigation bar */
    .navbar-default .navbar-nav > .active > a, .navbar-default .navbar-nav > .active > a:hover, .navbar-default .navbar-nav > .active > a:focus,li.current-page a
        {
            background:#121212 !important;
            color: #9932cc !important;
        }
/* Search bar/button */
    input,textarea
        {
            background-color:#000000 !important;
            color:#F9F9F9 !important;
        }

    .secondary_search
        {
            background-color:#222222 !important;
        }

    input.search_list
        {
            border: 1px solid #212121 !important;
        }

/* Tags */
    #submenu
        {
            background:#121212 !important;
        }

        .tag-type-copyright > a
        {
            color:#CC00FF;
        }

        .tag-type-character > a
        {
            color:#01CC01;
        }

        .tag-type-artist > a
        {
            color:#DD0303;
        }

    a
        {
            color: #00AAFF;
        }

    ul#tag-list
        {
            border-right: 1px solid #222222;
        }
}