Examine source code of Chrome Focus

{
  "name": "Chrome Focus",
  "author": "Coriform",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "colors": {
      "frame": "rgba(76, 74, 72, 1)",
      "frame_inactive": "rgba(127, 125, 124, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "tab_background_separator": "rgba(138, 142, 149, 1)",
      "tab_text": "rgba(33, 33, 33, 1)",
      "tab_line": "rgba(255, 255, 255, 1)",
      "tab_loading": "rgba(0, 120, 215, 1)",
      "tab_selected": "rgba(255, 255, 255, 1)",
      "icons": "rgba(95, 99, 104, 1)",
      "icons_attention": "rgba(66, 133, 244, 1)",
      "toolbar": "rgba(255, 255, 255, 1)",
      "bookmark_text": "rgba(33, 33, 33, 1)",
      "toolbar_top_separator": "rgba(255, 255, 255, 1)",
      "toolbar_bottom_separator": "rgba(182, 180, 182, 1)",
      "toolbar_vertical_separator": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(241, 243, 244, 1)",
      "toolbar_field_text": "rgba(33, 33, 33, 1)",
      "toolbar_field_text_focus": "rgba(33, 33, 33, 1)",
      "toolbar_field_highlight": "rgba(0, 120, 215, 1)",
      "toolbar_field_highlight_text": "rgba(255, 255, 255, 1)",
      "toolbar_field_focus": "rgba(255, 255, 255, 1)",
      "toolbar_field_border": "rgba(241, 243, 244, 1)",
      "toolbar_field_separator": "rgba(241, 243, 244, 1)",
      "toolbar_field_border_focus": "rgba(179, 206, 251, 1)",
      "button_background_hover": "rgba(238, 238, 238, 1)",
      "button_background_active": "rgba(226, 226, 226, 1)",
      "popup": "rgba(255, 255, 255, 1)",
      "popup_text": "rgba(33, 33, 33, 1)",
      "popup_border": "rgba(182, 180, 182, 1)",
      "popup_highlight": "#f2f2f2",
      "popup_highlight_text": "rgba(33, 33, 33, 1)",
      "ntp_background": "rgba(255, 255, 255, 1)",
      "ntp_text": "rgba(33, 33, 33, 1)",
      "sidebar": "rgba(255, 255, 255, 1)",
      "sidebar_text": "rgba(33, 33, 33, 1)",
      "sidebar_highlight": "#f2f2f2",
      "sidebar_highlight_text": "rgba(33, 33, 33, 1)"
    }
  }
}