Examine source code of Stygianbole Contrast

{
  "manifest_version": 2,
  "name": "Stygianbole Contrast",
  "version": "4",
  "description": "A pure black theme with warm-toned high contrast text.",
  "author": "eikpix",
  "theme": {
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#C9AA99",
      "tab_selected": "#140F10",
      "tab_text": "#FFFFFF",
      "tab_line": "#000000",
      "tab_loading": "#f7e6dd",
      "toolbar_top_separator": "#000000",
      "toolbar": "#000000",
      "toolbar_text": "#f2c9b7",
      "toolbar_field": "#000000",
      "toolbar_field_text": "#d7a890",
      "toolbar_field_border": "transparent",
      "toolbar_field_separator": "transparent",
      "toolbar_field_focus": "#000000",
      "toolbar_field_text_focus": "#f2c9b7",
      "toolbar_field_border_focus": "transparent",
      "toolbar_bottom_separator": "transparent",
      "bookmark_text": "#c49d8d",
      "popup": "#000000",
      "popup_text": "#f2c9b7",
      "popup_border": "#000000",
      "button_background_active": "#000000",
      "button_background_hover": "transparent",
      "icons": "#e6bfa5",
      "icons_attention": "#ff9855",
      "popup_highlight": "#000000",
      "popup_highlight_text": "#ffd9c2",
      "autocomplete_popup_highlight": "#000000",
      "autocomplete_popup_highlight_text": "#ffd9c2"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a586a3c3-7417-4d76-a985-c56f378f9aaa}"
    }
  }
}