Examine source code of Dense cactus rows

{
  "name": "cactus-802480_1920",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "cactus-802480_1920.jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9c362d92-581e-4445-baf4-bef716026e31}"
    }
  }
}