Examine source code of Cool wave

{
  "theme": {
    "images": {
      "theme_frame": "cool-wave-header.png"
    },
    "colors": {
      "frame": "#f7f9fa",
      "tab_background_text": "#a6d1fc"
    }
  },
  "version": "2.0",
  "name": "Cool wave",
  "manifest_version": 2
}