Examine source code of Kit (Dark Version)

{
  "manifest_version": 2,
  "name": "Kit (Dark Version)",
  "version": "2.1",
  "description": "Rich violet and midnight-purple tones with vibrant orange accents, brought to life by Kit’s playful personality throughout Firefox.",
  "author": "Illustrious Day",
  "browser_specific_settings": {
    "gecko": {
      "id": "{854c1a13-4585-4c49-b397-cab4fc744dcf}",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/theme-preview.png"
      ]
    },
    "colors": {
      "frame": "#210340",
      "frame_inactive": "#210340",
      "tab_background_text": "#DDCFE9",
      "tab_selected": "#421474",
      "tab_text": "#FFF8FD",
      "tab_line": "#FF8E0F",
      "tab_loading": "#FF8E0F",
      "toolbar": "#2C084F",
      "toolbar_text": "#F5ECF8",
      "toolbar_field": "#3A1066",
      "toolbar_field_text": "#F5ECF8",
      "toolbar_field_border": "#5F2C88",
      "toolbar_field_focus": "#421474",
      "toolbar_field_text_focus": "#FFF8FD",
      "toolbar_field_border_focus": "#FF9A24",
      "toolbar_field_highlight": "#6D56B5",
      "toolbar_field_highlight_text": "#FFF8FD",
      "toolbar_top_separator": "#4F1B87",
      "toolbar_bottom_separator": "#421474",
      "toolbar_vertical_separator": "#5A2A81",
      "icons": "#FFB22A",
      "icons_attention": "#FF6F06",
      "button_background_hover": "rgba(255, 178, 42, 0.16)",
      "button_background_active": "rgba(79, 27, 135, 0.46)",
      "bookmark_text": "#EADFF0",
      "popup": "#2C084F",
      "popup_text": "#F5ECF8",
      "popup_border": "#673595",
      "popup_highlight": "#4F1B87",
      "popup_highlight_text": "#FFF8FD",
      "sidebar": "#2C084F",
      "sidebar_text": "#F5ECF8",
      "sidebar_border": "#5A2A81",
      "sidebar_highlight": "#4F1B87",
      "sidebar_highlight_text": "#FFF8FD",
      "ntp_background": "#210340",
      "ntp_card_background": "#32105B",
      "ntp_text": "#F8F1FA"
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ],
      "color_scheme": "system",
      "content_color_scheme": "system"
    }
  }
}