Examine source code of It suddenly shining.

{
  "theme": {
    "images": {
      "theme_frame": "0309-0215-niwakaniakaruku-syeupnk000.jpg"
    },
    "colors": {
      "frame": "#e2f2ac",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "It suddenly shining.",
  "manifest_version": 2,
  "description": "0309-0215-niwakaniakaruku-syeupnk000\n0309futta-0215-niwakaniakaruku-syeupnk000"
}