Examine source code of Happy 2019

{
  "name": "Happy 2019",
  "manifest_version": 2,
  "version": "6.0",
  "theme": {
    "images": {
      "theme_frame": "2019.jpg"
    },
    "colors": {
      "frame": "rgba(194, 57, 204, 0.98)",
      "tab_background_text": "rgba(224, 47, 224, 1)",
      "toolbar": "rgba(207, 178, 178, 0)",
      "bookmark_text": "rgba(10, 186, 245, 1)",
      "toolbar_field": "rgba(245, 233, 233, 0)",
      "toolbar_field_text": "rgba(253, 252, 255, 1)"
    }
  }
}