Examine source code of Flowing current

{
  "theme": {
    "images": {
      "theme_frame": "g101006he--kairyuuninoru-00.jpg"
    },
    "colors": {
      "frame": "#c4b8b8",
      "tab_background_text": "#cfcc21"
    }
  },
  "version": "2.0",
  "name": "Flowing current",
  "manifest_version": 2,
  "description": "Flowing current"
}