Examine source code of Green to blue

{
  "name": "btg",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Capture.PNG"
    },
    "colors": {
      "frame": "rgba(34, 72, 107, 1)",
      "tab_background_text": "rgba(38, 101, 122, 1)",
      "toolbar": "rgba(46, 96, 143, 1)",
      "bookmark_text": "rgba(88, 155, 168, 1)",
      "toolbar_field": "rgba(66, 184, 143, 1)",
      "toolbar_field_text": "rgba(63, 232, 63, 1)"
    }
  }
}