Examine source code of flashy colored squares 2

{
  "theme": {
    "images": {
      "theme_frame": "FLASHYrainbowedCOLORS-b.jpg"
    },
    "colors": {
      "frame": "#2b0c20",
      "tab_background_text": "#f6f7ac"
    }
  },
  "version": "2.0",
  "name": "flashy colored squares 2",
  "manifest_version": 2,
  "description": "flashy colors colored multicolor multicolored fluorescent fluo squares geometric carres geometrique couleurs colore multicolore"
}