Examine source code of Chucko

{
  "theme": {
    "images": {
      "theme_frame": "Chucko_Persona_Header.jpg"
    },
    "colors": {
      "frame": "#7d0000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Chucko",
  "manifest_version": 2,
  "description": "First attempt at a Persona.\n\nModeled after colors used in 30s and 40s Socialist Propaganda.  I don't mean to promote the ideology, just their cool color schemes."
}