Examine source code of chrome native light

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "chrome light",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(255, 255, 255)",
      "toolbar_text": "rgb(60, 64, 67)",
      "frame": "rgb(222, 225, 230)",
      "tab_background_text": "rgb(60, 64, 67)",
      "toolbar_field": "rgb(241, 243, 244)",
      "toolbar_field_text": "rgb(32, 33, 36)",
      "tab_line": "rgba(152, 161, 180, 0)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(32, 33, 36)",
      "popup_border": "rgba(26, 115, 232, 0)",
      "toolbar_bottom_separator": "rgb(219, 220, 221)",
      "toolbar_field_border_focus": "rgb(26, 115, 232)",
      "toolbar_field_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgb(152, 161, 180)",
      "tab_loading": "rgba(152, 161, 180, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7b35161d-efff-4af6-b651-baface9fc915}"
    }
  }
}