Examine source code of Mossy Macro

{
  "theme": {
    "images": {
      "theme_frame": "MossPersonaHeader2.jpg"
    },
    "colors": {
      "frame": "#c9ffc9",
      "tab_background_text": "#fffbb5"
    }
  },
  "version": "2.0",
  "name": "Mossy Macro",
  "manifest_version": 2,
  "description": "Part of a macro I did of some moss growing on the asphalt near my garage."
}