Examine source code of Run meat boy run

{
  "theme": {
    "images": {
      "theme_frame": "side-jump.jpg"
    },
    "colors": {
      "frame": "#660707",
      "tab_background_text": "#0f5410"
    }
  },
  "version": "2.0",
  "name": "Run meat boy run",
  "manifest_version": 2,
  "description": "Run Meat boy!\nRun for your life!!!!!!!!!!!!"
}