Examine source code of Pastel Bubbles

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Pastel Bubbles",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png",
        "images/1.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center",
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat",
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgba(1, 31, 75, 0.27)",
      "toolbar_text": "rgb(204, 255, 144)",
      "frame": "rgb(144, 156, 177)",
      "tab_background_text": "rgb(19, 4, 116)",
      "toolbar_field": "rgba(60, 82, 123, 0.44)",
      "toolbar_field_text": "rgb(103, 255, 238)",
      "tab_line": "rgb(89, 255, 255)",
      "popup": "rgb(100, 118, 152)",
      "popup_text": "rgb(255, 223, 253)",
      "tab_loading": "rgb(89, 255, 255)"
    }
  }
}