Examine source code of Lancer

{
  "theme": {
    "images": {
      "theme_frame": "persona_header_lancer.jpg"
    },
    "colors": {
      "frame": "#fc8a8a",
      "tab_background_text": "#6b0000"
    }
  },
  "version": "2.0",
  "name": "Lancer",
  "manifest_version": 2
}