Examine source code of Catme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Catme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(72, 41, 105)",
      "toolbar_text": "rgb(98, 179, 218)",
      "frame": "rgb(45, 160, 226)",
      "tab_background_text": "rgb(4, 4, 58)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(217, 9, 138)",
      "tab_line": "rgb(156, 248, 112)",
      "popup": "rgb(189, 179, 233)",
      "popup_text": "rgb(89, 17, 239)",
      "tab_loading": "rgb(156, 248, 112)"
    }
  }
}