Examine source code of Cheeky Gradient

{
  "name": "Pastel Texture 2",
  "manifest_version": 2,
  "version": "8.0",
  "theme": {
    "images": {
      "theme_frame": "17.png"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 0)",
      "tab_background_text": "rgba(45, 250, 161, 1)",
      "toolbar": "rgba(219, 0, 113, 0.35)",
      "bookmark_text": "rgba(162, 247, 57, 1)",
      "toolbar_field": "rgba(26, 13, 110, 0.67)",
      "toolbar_field_text": "rgba(0, 255, 255, 1)"
    }
  }
}