Examine source code of CS Headshot Theme

{
  "theme": {
    "images": {
      "theme_frame": "Namnls3.png"
    },
    "colors": {
      "frame": "#bfbfbf",
      "tab_background_text": "#fffb00"
    }
  },
  "version": "2.0",
  "name": "CS Headshot Theme",
  "manifest_version": 2,
  "description": "I got bored, so I decided to make a theme. This is what I came up with, a headshot theme. The headshot icon is from Counter-Strike."
}