Examine source code of Nothing — Dark

{
  "manifest_version": 2,
  "name": "Nothing — Dark",
  "description": "Nothing-inspired monochromatic dark theme. OLED black, instrument panel aesthetic.",
  "version": "1.1",
  "browser_specific_settings": {
    "gecko": {
      "id": "nothing-dark@codex.band",
      "strict_min_version": "86.0"
    }
  },
  "theme": {
    "colors": {
      "frame": "#000000",
      "frame_inactive": "#000000",
      "tab_background_text": "#555555",
      "tab_selected": "#111111",
      "tab_line": "#D71921",
      "tab_loading": "#D71921",
      "toolbar": "#000000",
      "toolbar_text": "#E8E8E8",
      "toolbar_field": "#111111",
      "toolbar_field_text": "#E8E8E8",
      "toolbar_field_border": "#222222",
      "toolbar_field_focus": "#111111",
      "toolbar_field_text_focus": "#FFFFFF",
      "toolbar_field_border_focus": "#D71921",
      "toolbar_field_highlight": "#222222",
      "toolbar_field_highlight_text": "#FFFFFF",
      "icons": "#999999",
      "icons_attention": "#D71921",
      "button_background_hover": "#111111",
      "button_background_active": "#1A1A1A",
      "popup": "#111111",
      "popup_text": "#E8E8E8",
      "popup_border": "#222222",
      "popup_highlight": "#1A1A1A",
      "popup_highlight_text": "#FFFFFF",
      "sidebar": "#000000",
      "sidebar_text": "#E8E8E8",
      "sidebar_highlight": "#111111",
      "sidebar_highlight_text": "#FFFFFF",
      "sidebar_border": "#111111"
    }
  }
}