Examine source code of Speculatively to you

{
  "theme": {
    "images": {
      "theme_frame": "Speculativelytoyou_01.jpg"
    },
    "colors": {
      "frame": "#a10038",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Speculatively to you",
  "manifest_version": 2,
  "description": "いつも傍に居てくれてありがとう！\n優しく見守ってくれてありがとう！\n柔らかな想いで包んでくれてありがとう！\n大切なあなたへ・・・全ての想いを込めて・・・\n◎Valentine's Day, Bright thoughts, Dear love, Precious heart"
}