Examine source code of Rainbow Linear Gradientz

{
  "theme": {
    "images": {
      "theme_frame": "PERSONAHEADER2.png"
    },
    "colors": {
      "frame": "#c1f5f1",
      "tab_background_text": "#ffe5e5"
    }
  },
  "version": "2.0",
  "name": "Rainbow Linear Gradientz",
  "manifest_version": 2,
  "description": "RAINBOW LINEAR GRADIENT, 2nd persona, better than my first ^^"
}