Examine source code of Insanity Theme Dark

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#500101",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Insanity Theme Dark",
  "manifest_version": 2,
  "description": "Nothing is as it seems with this theme, its not dark, nor light, but we do hope you enjoy using this theme and look forward to your comments..."
}