Examine source code of Amable

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Amable",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-003-31b6bea3c78e3a19fd889b0389652a94.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(230, 239, 222)",
      "toolbar_text": "rgb(102, 89, 92)",
      "frame": "rgb(244, 211, 193)",
      "tab_background_text": "rgb(102, 89, 92)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(150, 131, 134)",
      "tab_line": "rgb(251, 201, 190)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(150, 131, 134)",
      "tab_loading": "rgb(251, 201, 190)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{416eb87b-a921-4ae9-9378-e55672b1d3ad}"
    }
  }
}