Examine source code of Sweet Rainbows

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#f5d2d8",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Sweet Rainbows",
  "manifest_version": 2,
  "description": "A cute, light pink theme featuring cartoon rainbows and stars."
}