Examine source code of persona_30secondstomars

{
  "theme": {
    "images": {
      "theme_frame": "persona_header_image_small.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "persona_30secondstomars",
  "manifest_version": 2
}