Examine source code of mushroomdance

{
  "name": "Psyforest",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "IMG_20200820_211856.jpg"
    },
    "colors": {
      "frame": "rgba(72, 113, 207, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(8, 4, 4, 1)",
      "bookmark_text": "rgba(189, 178, 178, 1)",
      "toolbar_field": "rgba(245, 245, 245, 1)"
    }
  }
}