Examine source code of Wait for spring feeling.

{
  "theme": {
    "images": {
      "theme_frame": "828-kareeda---burashlin-turuahure.jpg"
    },
    "colors": {
      "frame": "#d8cced",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Wait for spring feeling.",
  "manifest_version": 2,
  "description": "春の感じを待ちます。。\n\n\n\n\n\n\n\n828-kareeda---burashlin-turuahure-"
}