Examine source code of heatredefined.com

{
  "theme": {
    "images": {
      "theme_frame": "Persona_top_heatredefined2.jpg"
    },
    "colors": {
      "frame": "#ed630e",
      "tab_background_text": "#edc92b"
    }
  },
  "version": "2.0",
  "name": "heatredefined.com",
  "manifest_version": 2,
  "description": "This is for fun and to highlight a wood and pellet stove brand that has been around for a long time."
}