Examine source code of Fall Pusheen Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Fall Pusheen Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(255, 255, 255, 0.64)",
      "toolbar_text": "rgb(21, 22, 22)",
      "frame": "rgb(249, 221, 118)",
      "tab_background_text": "rgb(28, 29, 29)",
      "toolbar_field": "rgba(255, 255, 255, 0.36)",
      "toolbar_field_text": "rgb(15, 15, 16)",
      "tab_line": "rgb(255, 112, 0)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(14, 15, 16)",
      "tab_loading": "rgb(255, 112, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ac13f6a6-dee4-4769-96f8-be0fd54f7f04}"
    }
  }
}