Examine source code of Syntax Highlighting

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Syntax Highlighting",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(37, 44, 44)",
      "toolbar_text": "rgb(255, 240, 0)",
      "frame": "rgb(28, 32, 32)",
      "tab_background_text": "rgb(185, 206, 206)",
      "toolbar_field": "rgb(37, 44, 44)",
      "toolbar_field_text": "rgb(255, 10, 0)",
      "tab_line": "rgb(255, 0, 170)",
      "popup": "rgb(37, 44, 44)",
      "popup_text": "rgb(185, 206, 206)",
      "button_background_active": "rgb(37, 83, 37)",
      "button_background_hover": "rgb(46, 104, 46)",
      "frame_inactive": "rgb(28, 32, 32)",
      "icons_attention": "rgb(200, 0, 255)",
      "icons": "rgb(0, 255, 0)",
      "ntp_background": "rgb(46, 53, 53)",
      "ntp_text": "rgb(185, 206, 206)",
      "popup_border": "rgb(37, 44, 44)",
      "popup_highlight_text": "rgb(0, 217, 255)",
      "popup_highlight": "rgb(25, 75, 83)",
      "sidebar_border": "rgb(42, 49, 49)",
      "sidebar_highlight_text": "rgb(255, 136, 0)",
      "sidebar_highlight": "rgb(72, 49, 18)",
      "sidebar_text": "rgb(185, 206, 206)",
      "sidebar": "rgb(42, 49, 49)",
      "tab_background_separator": "rgba(38, 255, 0, 0)",
      "tab_loading": "rgb(255, 62, 191)",
      "tab_selected": "rgb(36, 41, 41)",
      "tab_text": "rgb(255, 0, 170)",
      "toolbar_bottom_separator": "rgb(37, 44, 44)",
      "toolbar_field_border_focus": "rgb(0, 217, 255)",
      "toolbar_field_border": "rgba(37, 44, 44, 0)",
      "toolbar_field_focus": "rgb(37, 44, 44)",
      "toolbar_field_highlight_text": "rgb(0, 217, 255)",
      "toolbar_field_highlight": "rgb(25, 75, 83)",
      "toolbar_field_separator": "rgba(24, 255, 0, 0)",
      "toolbar_field_text_focus": "rgb(185, 206, 206)",
      "toolbar_top_separator": "rgba(37, 44, 44, 0)",
      "toolbar_vertical_separator": "rgb(61, 68, 68)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{741122c7-b3aa-4b5c-89fe-a02e810162f6}"
    }
  }
}