Examine source code of Serious Balloons

{
  "theme": {
    "images": {
      "theme_frame": "headerballoon.jpg"
    },
    "colors": {
      "frame": "#c507de",
      "tab_background_text": "#0a0d57"
    }
  },
  "version": "2.0",
  "name": "Serious Balloons",
  "manifest_version": 2,
  "description": "Abstract painting with photoshop brushes created by me. "
}