Examine source code of Easter Theme Pusheen

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Easter Theme Pusheen",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(229, 237, 239, 0.7)",
      "toolbar_text": "rgb(131, 139, 9)",
      "frame": "rgb(141, 228, 246)",
      "tab_background_text": "rgb(252, 106, 234)",
      "toolbar_field": "rgba(255, 255, 255, 0)",
      "toolbar_field_text": "rgb(0, 15, 1)",
      "tab_line": "rgb(244, 170, 228)",
      "popup": "rgb(162, 234, 235)",
      "popup_text": "rgb(8, 9, 9)",
      "tab_loading": "rgb(244, 170, 228)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8f7cd383-ee62-420c-b92e-959d72e6cd32}"
    }
  }
}