Examine source code of Pastel Plue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Pastel Plue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-038-6c77b9d7dc86f50c6cd82f9c9b1f36f0.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(255, 220, 220)",
      "toolbar_text": "rgb(35, 99, 105)",
      "frame": "rgb(193, 225, 252)",
      "tab_background_text": "rgb(121, 80, 87)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(131, 47, 65)",
      "tab_line": "rgb(0, 172, 255)",
      "popup": "rgb(255, 220, 220)",
      "popup_text": "rgb(35, 99, 105)",
      "tab_loading": "rgb(0, 172, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a2d16327-ef13-48ee-a377-2579d51e08a8}"
    }
  }
}