Examine source code of Light Dev Theme

{
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "lightdev2@yeet.com",
      "strict_min_version": "100.0"
    }
  },
  "version": "1.0",
  "name": "Light Dev Theme",
  "theme": {
    "colors": {
      "bookmark_text": "#222222",
      "frame": "#F0F0F4",
      "ntp_background": "#F0F0F4",
      "ntp_text": "#222222",
      "popup": "#F0F0F4",
      "popup_text": "#222222",
      "popup_highlight": "#668BDB",
      "popup_highlight_text": "#222222",
      "sidebar": "#F0F0F4",
      "sidebar_text": "#222222",
      "sidebar_highlight": "#668BDB",
      "sidebar_highlight_text": "#222222",
      "tab_background_separator": "#222222",
      "tab_background_text": "#222222",
      "tab_selected": "#668BDB",
      "tab_text": "#FFFFFF",
      "tab_line": "#668BDB",
      "toolbar": "#F9F9FB",
      "toolbar_field": "#F0F0F4",
      "toolbar_field_text": "#222222",
      "toolbar_field_text_focus": "#222222",
      "toolbar_field_border": "#E9E9ED",
      "toolbar_field_border_focus": "#668BDB",
      "toolbar_field_highlight": "#668BDB",
      "toolbar_field_highlight_text": "#FFFFFF",
      "toolbar_bottom_separator": "#DDDDE0",
      "toolbar_top_separator": "#DDDDE0"
    }
  }
}