Examine source code of Second Try

{
  "theme": {
    "images": {
      "theme_frame": "Colorful_mineH3000x200A.png"
    },
    "colors": {
      "frame": "#b9e2fa",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Second Try",
  "manifest_version": 2,
  "description": "Another mod of the Colorful persona, this time with the blue gradient"
}