Examine source code of Cleveland Blue

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#D1D9E7",
      "tab_background_text": "#1A4286"
    }
  },
  "version": "2.0",
  "name": "Cleveland Blue",
  "manifest_version": 2,
  "description": "Dark Blue"
}