Examine source code of Riley suave

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "sanbenito",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg",
        "images/1.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left bottom",
        "right bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat",
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgba(9, 10, 10, 0)",
      "toolbar_text": "rgba(246, 174, 6, 0.81)",
      "frame": "rgb(15, 15, 15)",
      "tab_background_text": "rgb(10, 10, 10)",
      "toolbar_field": "rgba(238, 17, 91, 0.33)",
      "toolbar_field_text": "rgb(16, 16, 17)",
      "tab_line": "rgba(240, 174, 19, 0.06)",
      "popup": "rgba(34, 34, 37, 0.2)",
      "popup_text": "rgba(240, 174, 19, 0.72)",
      "tab_loading": "rgba(240, 174, 19, 0.06)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{495c7bc6-ab06-40e0-bc13-73c2d3cb9395}"
    }
  }
}