Examine source code of Avenger1321

{
  "theme": {
    "images": {
      "theme_frame": "546e27df6f2a398267ea2f3a9642f3b6.jpg"
    },
    "colors": {
      "frame": "#1100ff",
      "tab_background_text": "#0004ff"
    }
  },
  "version": "2.0",
  "name": "Avenger1321",
  "manifest_version": 2,
  "description": "Theme simple"
}