Examine source code of Red-greyblack theme thing

{
  "theme": {
    "images": {
      "theme_frame": "firefoxtheme2.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffd9d9"
    }
  },
  "version": "2.0",
  "name": "Red-greyblack theme thing",
  "manifest_version": 2,
  "description": "First Persona I've made.\nIt might not be the best, but I did everything in it myself.\nTools: photoshop cs, wacom tablet."
}