my-style.css

#channel_header_info_item,#channel_page_scroller,#channel_topic,#channel_topic_container,#channel_topic_text,#client_body,#client_body:not(.onboarding):before,#client_header,#details_tab_header,#edit_topic_container,#edit_topic_inner,#file_list_container,#file_preview_scroller,#footer,#footer_msgs,#fs_modal,#fs_modal_footer,#fs_modal_header,#help_modal_header,#member_mentions,#member_preview_scroller,#mentions_options,#mentions_scroller,#menu_member_dm_input,#message_pane_scroller,#messages_container #footer,#monkey_scroll_bar_native_scrollbar_shim,#monkey_scroll_hider,#monkey_scroller,#msgs_scroller_div,#notification_bar,#page,#scrolling,#search_message_results,#search_options,#search_results_items,#team_list_container,#team_list_scroller,#whats_new_scroller,#whats_new_updates,.account_tab_set,.alert.alert_info,.alert.alert_warning,.btn_unstyle,.channel_header,.channel_page_about,.channel_page_highlights,.channel_page_members,.channel_page_notif_prefs,.channel_page_pinned_items,.channel_page_shared_files,.client_main_container,.day_divider:before,.feature_sli_file_search #search_results.all,.feature_sli_file_search #search_results.messages,.file_list_item,.heading,.internal_member_link,.lfs_group,.lfs_input_container,.match,.member_current_status,.member_timezone_value,.mention_day_container_div,.menu.submenu,.menu_body,.menu_content,.menu_member_footer,.message_body,.message_content,.message_gutter,.message_icon,.message_pane_scroller,.monkey_scroll_bar_native_scrollbar_shim,.monkey_scroll_hider,.monkey_scroller,.msgs_scroller_div,.ql-blank,.ql-editor,.scrolling,.search_message_result,.search_result_with_extract,.searchable_member_list_filter,.sidebar_menu_list_item,.slack_menu_download.slack_menu_section,.tab_pane,.toolbar_container,.unread_group_header,div.display_flex.flex_one.align_items_center.left_margin.display_real_names_block_sample,div.global_notification_block.no_padding,input.searchable_member_list_input,optgroup,ts-message{
    background:#36393e!important
}

.channel_desktop_notifs,.highlight_yellow_bg{
    color:#000!important;
    border-radius:3px;
    padding:2px
}

#presence,#presence_container,.c-icon--align-baseline,.c-icon--presence-onlin,.c-presence--active,.ts_icon.ts_icon_presence.presence_icon{
    color:#93cc93!important
}

.divider_label,.mention{
    color:#36393e!important
}

#channel_topic_text,.message_body{
    color:#ededed!important
}

#a11y_keyboard_shortcuts,#back_from_member_preview,#channel_created_meta,#channel_files_title,#channel_meta_purpose_container,#channel_name,#channel_notif_prefs_title,#channel_page_scroller,#channel_page_title,#details_tab_header,#file_list_item,#flex_contents .subheading:not(:empty),#fs_modal,#fs_modal_header,#help_modal_list_container,#highlights_title,#member_count_title,#mentions_options,#pinned_items_title,#prefs_a11y_animations,#prefs_channel_overrides,#prefs_highlight_words,#prefs_sounds_and_appearance,#welcome_user,#whats_new_updates,.a.p-channel_sidebar__channel.p-channel_sidebar__channel--unread,.admin_list_item,.admin_member_real_name,.btn_unstyle,.c-member__display-name,.c-member__display-name--large,.c-member__title,.channel_link,.channel_meta_end,.channel_meta_purpose,.channel_purpose_text,.creator_link,.current_status,.desktop_notifications_title,.dm_explanation,.icon_offset,.match,.member_name_and_presence,.message_content,.message_content_header,.message_content_header_left,.not_limited_copy,.notification_prefs_section,.p-channel_sidebar__channel.p-channel_sidebar__channel--selected,.pin_member_name,.preview.post_body,.ql-blank,.ql-editor,.threads_alternative_view_message,.threads_empty_state_message_header,.timezone_label,.title,.unread_empty_state_message,.whats_new_content,.whats_new_description,a,div.comment_body,h1,h2.heading_text,h4,input.searchable_member_list_input,p,table,td,tr{
    color:#fff!important
}

button{
    background:#36393e
}

#footer,#team_menu,.headroom.showSearch.headroom--top,.p-channel_sidebar__quickswitcher,.p-channel_sidebar__static_list,nav{
    background:#303136!important
}

#msg_input,.search_input,.texty_single_line_input{
    background:#484b50!important;
    color:#fff!important
}

.autocomplete_menu_scrollable{
    background:#36393e!important;
    background-color:#36393e color: #fff!important
}

.c-member__display-name--small,.help_modal_article_row:hover,.member_title,h2,h3,span.charcoal_grey{
    color:#8c8c8c!important
}

.bot_label,.header_label{
    border-radius:3px!important;
    padding:.5px;
    color:#8c8c8c!important
}

.internal_member_link{
    color:#9ad6d4!important
}

body,html{
    color:#fff
}

.sidebar_menu_list_item{
    color:#b7b7b7!important
}

.p-channel_sidebar__channel,div.card,div.clearfix,div.home_card,div.plastic_row{
    color:#a0a0a0!important
}

.sidebar_menu_list_item:hover{
    color:#fff!important;
    background:#464a51!important;
    border:0
}

.tab_set a.secondary.selected,.tab_set a.selected{
    background:#4e5259!important
}

.lfs_item,optgroup{
    color:#4c4c4c!important
}

.file_header_title,.lfs_item.active,.lfs_item.selected,p.call_subinfo.no_bottom_margin,p.no_bottom_margin.overflow_ellipsis{
    color:#000!important
}