Examine source code of zenAutmnLeaves

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "zenAutmnLeaves",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-011-d53e0d0d1538ed554a90e056a2f04eca.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(245, 245, 245)",
      "toolbar_text": "rgb(58, 62, 44)",
      "frame": "rgb(220, 171, 140)",
      "tab_background_text": "rgb(241, 243, 223)",
      "toolbar_field": "rgb(254, 250, 249)",
      "toolbar_field_text": "rgb(196, 116, 66)",
      "tab_line": "rgba(18, 12, 22, 0)",
      "popup": "rgb(109, 95, 87)",
      "popup_text": "rgb(241, 184, 149)",
      "icons_attention": "rgb(94, 85, 119)",
      "icons": "rgb(213, 147, 108)",
      "ntp_background": "rgb(36, 41, 39)",
      "ntp_text": "rgb(236, 213, 165)",
      "tab_background_separator": "rgba(34, 25, 77, 0)",
      "tab_selected": "rgb(245, 245, 245)",
      "tab_text": "rgb(56, 77, 67)",
      "toolbar_bottom_separator": "rgba(52, 9, 18, 0.09)",
      "toolbar_field_border": "rgba(255, 255, 255, 0)",
      "toolbar_field_separator": "rgba(34, 25, 77, 0)",
      "toolbar_top_separator": "rgba(34, 25, 77, 0)",
      "tab_loading": "rgba(18, 12, 22, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{38d74025-d6f6-4d20-bb9e-61a8786396a7}"
    }
  }
}