Examine source code of Static Dark Space

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Static Dark Space",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(16, 16, 16)",
      "toolbar_text": "rgb(212, 212, 212)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(125, 125, 125)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(204, 204, 204)",
      "tab_line": "rgb(32, 32, 32)",
      "popup": "rgb(16, 16, 16)",
      "popup_text": "rgb(212, 212, 212)",
      "button_background_active": "rgb(40, 40, 40)",
      "button_background_hover": "rgb(40, 40, 40)",
      "frame_inactive": "rgb(0, 0, 0)",
      "icons_attention": "rgb(212, 212, 212)",
      "icons": "rgb(212, 212, 212)",
      "ntp_background": "rgb(0, 0, 0)",
      "ntp_text": "rgb(212, 212, 212)",
      "popup_border": "rgb(48, 48, 48)",
      "popup_highlight_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgb(48, 48, 48)",
      "sidebar_border": "rgb(48, 48, 48)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgb(51, 51, 51)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(16, 16, 16)",
      "tab_background_separator": "rgb(32, 32, 32)",
      "tab_loading": "rgb(255, 255, 255)",
      "tab_selected": "rgb(20, 20, 20)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(14, 14, 14)",
      "toolbar_field_border_focus": "rgb(48, 48, 48)",
      "toolbar_field_border": "rgb(16, 16, 16)",
      "toolbar_field_focus": "rgb(16, 16, 16)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgb(51, 51, 51)",
      "toolbar_field_separator": "rgb(14, 14, 14)",
      "toolbar_field_text_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgb(14, 14, 14)",
      "toolbar_vertical_separator": "rgb(14, 14, 14)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5a278bfb-0162-40d9-b6c9-ea0760ed0a97}"
    }
  }
}