Examine source code of MountainStream

{
  "name": "MountainStream",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "MountainStream.png"
    },
    "colors": {
      "frame": "#e8dae6",
      "tab_background_text": "rgba(20, 75, 79, 1)"
    }
  }
}