Firefox Dark Theme Restorer

/* Dark Developer Theme Restorer */
/* Undos: https://bug1205330.bmoattachments.org/attachment.cgi?id=8748690 */
:root[devtoolstheme="dark"] {
    /* Chrome */
    --chrome-background-color: #1C2126 !important;
    --chrome-secondary-background-color: #39424D !important;
    --chrome-selection-background-color: #074D75 !important;

    /* Tabs */
    --tab-selection-background-color: #1a4666 !important;
    --tab-selection-box-shadow: 0 2px 0 #D7F1FF inset,
                                0 -2px 0 rgba(0,0,0,.05) inset,
                                0 -1px 0 rgba(0,0,0,.3) inset !important;

    /* Toolbar buttons */
    --toolbarbutton-checkedhover-backgroundcolor: #1D4F73 !important;

    /* gcli */
    --gcli-background-color: #343c45 !important; /* --theme-toolbar-background */
    --gcli-input-focused-background: #252c33 !important; /* --theme-tab-toolbar-background */
    --gcli-border-color: black !important; /* --theme-splitter-color */
}

.tabbrowser-tab[visuallyselected] {
    box-shadow: var(--tab-selection-box-shadow) !important;
}

:root[devtoolstheme="dark"] #developer-toolbar {
    --gcli-background-color: #343c45 !important; /* --theme-toolbar-background */
    --gcli-input-background: rgba(37, 44, 51, .6) !important; /* --theme-tab-toolbar-background */
    --gcli-input-focused-background: #252c33 !important; /* --theme-tab-toolbar-background */
    --gcli-border-color: black !important; /* --theme-splitter-color */
    --selection-background: #1d4f73 !important; /* --theme-selection-background */
}

.theme-dark .trace-item.selected-matching {
    background-color: rgba(29,79,115,.4) !important; /* Select highlight blue at 40% alpha */
}

.theme-dark .selected > .trace-item {
    background-color: rgba(29,79,115,.6) !important; /* Select highlight blue at 60% alpha */
}

.theme-dark .dbg-search-result:hover {
    background-color: rgba(29,79,115,.2) !important; /* Select highlight blue at 40% alpha */
}

.theme-dark #toolbox-buttons .devtools-toolbarbutton[text-as-image][checked=true] {
    background: rgba(29, 79, 115, .7) !important; /* Select highlight blue */
    color: var(--theme-selection-color) !important;
}

.theme-dark .devtools-tabbar {
    box-shadow: 0 -2px 0 rgba(0,0,0,.1) inset !important;
}

.theme-dark .devtools-tabbar .devtools-tab[selected] {
    box-shadow: 0 2px 0 #d7f1ff inset,
                0 8px 3px -5px #2b82bf inset,
                0 -2px 0 rgba(0,0,0,.2) inset !important;
}

:root.theme-dark {
    --theme-body-background: #14171a !important;
    --theme-sidebar-background: #181d20 !important;
    --theme-contrast-background: #b28025 !important;
    --theme-tab-toolbar-background: #252c33 !important;
    --theme-toolbar-background: #343c45 !important;
    --theme-selection-background: #1d4f73 !important;
    --theme-selection-background-semitransparent: rgba(29, 79, 115, .5) !important;
    --theme-splitter-color: black !important;
    --theme-highlight-green: #70bf53 !important;
    --theme-highlight-purple: #6b7abb !important;
}