Examine source code of Color Sparks

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#de28b4",
      "tab_background_text": "#6a04b3"
    }
  },
  "version": "2.0",
  "name": "Color Sparks",
  "manifest_version": 2,
  "description": "This is something I made with gimp. I just found out about these persona things, and wanted to have some fun with it."
}