ShadowFox/userChrome-files/bookmarks_popup.css

/* Bookmarks Pop up */
#editBMPanel_rows > row > textbox,
#editBMPanel_rows > row > hbox > textbox,
#editBMPanel_folderMenuList,
#editBookmarkPanelRemoveButton,
#editBookmarkPanelDoneButton,
#editBMPanel_foldersExpander,
#editBMPanel_tagsSelectorExpander {
    -moz-appearance: none !important;
    background: var(--primary-dark-color) !important;
    color: var(--primary-light-color) !important;
    border: 1px solid var(--light-accent-color) !important;
    box-shadow: none !important;
}

#editBookmarkPanel .expander-down > .button-box > .button-icon {
    filter: invert(65%) !important;
}

#editBMPanel_folderTree,
#editBMPanel_tagsSelector {
    -moz-appearance: none !important;
    background: var(--primary-dark-color) !important;
    color: var(--primary-light-color) !important;
    opacity: 1 !important;
}

#editBMPanel_folderTree treechildren:not(.autocomplete-treebody)::-moz-tree-row,
#editBMPanel_tagsSelector treechildren:not(.autocomplete-treebody)::-moz-tree-row {
    background: var(--mid-way-color) !important;
    color: var(--primary-light-color) !important;
}

#editBMPanel_folderTree treechildren:not(.autocomplete-treebody)::-moz-tree-row(hover),
#editBMPanel_tagsSelector treechildren:not(.autocomplete-treebody)::-moz-tree-row(hover) {
    background: var(--dark-accent) !important;
    color: var(--primary-accent-color) !important;
    -moz-border-top-colors: var(--dark-accent) !important;
    -moz-border-right-colors: var(--dark-accent) !important;
    -moz-border-left-colors: var(--dark-accent) !important;
    -moz-border-bottom-colors: var(--dark-accent) !important;
}

/* Change the outline of icons to light instead of dark */
#editBMPanel_folderTree treechildren::-moz-tree-image{
  fill: var(--primary-light-color) !important;
}
#editBMPanel_folderTree treechildren::-moz-tree-image(selected) {
  fill: white !important;
}

/* Selected, in focus */
#editBMPanel_folderTree treechildren:not(.autocomplete-treebody)::-moz-tree-row(selected, current, focus){
  background: var(--primary-accent-color) !important;
}

listitem[selected="true"] {
    background-color: var(--primary-accent-color) !important;
    color: white !important;
}

#editBMPanel_folderTree treechildren:not(.autocomplete-treebody)::-moz-tree-row(selected, current) {
  background: var(--primary-accent-color) !important;
}

#editBMPanel_folderTree {
    border: 1px solid var(--light-accent-color) !important;
    border-bottom: none !important;
}

#editBMPanel_newFolderBox {
    background: var(--primary-dark-color) !important;
    border: 1px solid var(--light-accent-color) !important;
    box-shadow: none !important;
}