Examine source code of Is shining here. .

{
  "theme": {
    "images": {
      "theme_frame": "0309-0306-gra3-oooo-q-sy-mei-.jpg"
    },
    "colors": {
      "frame": "#faf2f2",
      "tab_background_text": "#84e1eb"
    }
  },
  "version": "2.0",
  "name": "Is shining here. .",
  "manifest_version": 2,
  "description": "ここでかがやいている。。\n\n0309-0306-gra3-oooo-q-sy-mei-\n0309futta-0306-gra3-oooo-q-sy-mei-\n\n0306-gra3-oooo-q-sy-mei-"
}