Examine source code of ラブライブ！ LoveLive!　矢澤にこ - Nico Yazawa - Theme

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#fccee8",
      "tab_background_text": "#363636"
    }
  },
  "version": "2.0",
  "name": "ラブライブ！ LoveLive!　矢澤にこ - Nico Yazawa - Theme",
  "manifest_version": 2,
  "description": "It is this Theme in Nico Yazawa."
}