Examine source code of Wave remains aligned..

{
  "theme": {
    "images": {
      "theme_frame": "pooo823-m-wakugawabe-siro.jpg"
    },
    "colors": {
      "frame": "#dedce0",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Wave remains aligned..",
  "manifest_version": 2,
  "description": "ウエーブは整列のまま。。\n\n\n\n\n\n\n\npooo823-m-wakugawabe-siro"
}