Examine source code of Marmot Spring

{
  "theme": {
    "images": {
      "theme_frame": "Marmots-MossyTree-header.JPG"
    },
    "colors": {
      "frame": "#dcdee8",
      "tab_background_text": "#020a02"
    }
  },
  "version": "2.0",
  "name": "Marmot Spring",
  "manifest_version": 2,
  "description": "Marmots watching you!"
}