Examine source code of Welding Whiff Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Welding Whiff Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(88, 87, 47)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(216, 250, 24)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(235, 247, 168)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 228, 233)",
      "popup": "rgb(17, 26, 202)",
      "popup_text": "rgb(178, 181, 10)",
      "tab_loading": "rgb(255, 228, 233)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c5155609-9e08-4bf6-a11b-738b6014f72c}"
    }
  }
}