Examine source code of Blood Omen

{
  "theme": {
    "images": {
      "theme_frame": "top.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Blood Omen",
  "manifest_version": 2,
  "description": "A simple blood splatter theme. A little easier to read text with this than some of the others. Feel free to use this as you wish.\n\n***Looks best on high resolution monitors, e.g. 1440x900+\nStill looks good on small monitors however."
}