Examine source code of MSI test

{
  "name": "MSI test",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "AE.png"
    },
    "colors": {
      "frame": "rgba(142, 73, 98, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(199, 46, 94, 0.26)",
      "bookmark_text": "rgba(245, 66, 179, 1)",
      "toolbar_field": "rgba(255, 255, 255, 0.58)",
      "toolbar_field_text": "rgba(230, 0, 146, 0.85)",
      "tab_line": "rgba(255, 0, 162, 0.97)"
    }
  }
}