Examine source code of Bauhaus_1923

{
  "theme": {
    "images": {
      "theme_frame": "bauhaus1c.png"
    },
    "colors": {
      "frame": "#a3a3a3",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Bauhaus_1923",
  "manifest_version": 2,
  "description": "Yellow triangle, blue circle, red square."
}