Examine source code of color R&H

{
  "theme": {
    "images": {
      "theme_frame": "rh_001b.png"
    },
    "colors": {
      "frame": "#ffcccc",
      "tab_background_text": "#ffcc99"
    }
  },
  "version": "2.0",
  "name": "color R&H",
  "manifest_version": 2,
  "description": "Raku @ Seii\nHisashi @ Sou\n\n\n\nセイイ♥ソウ"
}