Examine source code of Perwinke Van gogh

{
  "name": "Perwinke Vann gogh",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "1280px-Van_Gogh_-_Starry_Night_-_Google_Art_Project — kopia.jpg"
    },
    "colors": {
      "frame": "rgba(73, 80, 94, 1)",
      "tab_background_text": "rgba(134, 88, 209, 1)",
      "toolbar": "rgba(53, 49, 64, 1)",
      "bookmark_text": "rgba(114, 123, 130, 1)",
      "toolbar_field": "rgba(89, 86, 97, 1)",
      "toolbar_field_text": "rgba(21, 19, 23, 1)",
      "tab_line": "rgba(127, 141, 148, 1)"
    }
  }
}