Examine source code of Chellmina 2.0

{
  "theme": {
    "images": {
      "theme_frame": "Chellmina2.png"
    },
    "colors": {
      "frame": "#73ccd1",
      "tab_background_text": "#18abc2"
    }
  },
  "version": "2.0",
  "name": "Chellmina 2.0",
  "manifest_version": 2,
  "description": "It's Chellmina! 2.0!"
}