Examine source code of frog frog theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "frog frog theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png",
        "images/1.png",
        "images/2.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top",
        "right top",
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat",
        "no-repeat",
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(224, 245, 202)",
      "toolbar_text": "rgb(114, 171, 120)",
      "frame": "rgb(255, 255, 255)",
      "tab_background_text": "rgb(122, 6, 7)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(0, 231, 125)",
      "tab_line": "rgb(0, 0, 15)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(255, 0, 4)",
      "tab_loading": "rgb(0, 0, 15)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fc3b9df2-05d4-4d66-834d-e952bb2da449}"
    }
  }
}