Examine source code of Mushrooms1265

{
  "theme": {
    "images": {
      "theme_frame": "MushroomTop.jpg"
    },
    "colors": {
      "frame": "#78b1cf",
      "tab_background_text": "#b2cad4"
    }
  },
  "version": "2.0",
  "name": "Mushrooms1265",
  "manifest_version": 2
}