Examine source code of Minimal Bar: Orange

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#333333",
      "tab_background_text": "#ededed"
    }
  },
  "version": "2.0",
  "name": "Minimal Bar: Orange",
  "manifest_version": 2,
  "description": "A minimal theme with a 6-pixel horizontal orange bar at the top. Based on \"Gray Minimal\" by Z.A.C.H."
}