Examine source code of Ononoki Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Ononoki Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png",
        "images/1.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top",
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat",
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(117, 228, 225, 0.45)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(48, 213, 200)",
      "tab_background_text": "rgb(0, 0, 0)",
      "toolbar_field": "rgba(255, 165, 0, 0.75)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(0, 0, 0)",
      "popup": "rgb(117, 228, 225)",
      "popup_text": "rgb(0, 0, 0)",
      "button_background_hover": "rgba(255, 165, 0, 0.75)",
      "popup_border": "rgb(255, 165, 0)",
      "tab_selected": "rgba(255, 165, 0, 0.75)",
      "toolbar_field_border_focus": "rgb(0, 0, 0)",
      "toolbar_field_border": "rgb(0, 0, 0)",
      "tab_loading": "rgb(0, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8fd912b0-0498-40f5-a68f-1d0d60ddf36d}"
    }
  }
}