Examine source code of Miku Append D

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#dedede",
      "tab_background_text": "#e409e8"
    }
  },
  "version": "2.0",
  "name": "Miku Append D",
  "manifest_version": 2,
  "description": "Miku Append test version"
}