Examine source code of Neon Greenie

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Neon Greenie",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-032-c7f80ac9e21af771c8d088973b1309ea.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(160, 255, 21)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(160, 255, 21)",
      "toolbar_field": "rgb(40, 41, 40)",
      "toolbar_field_text": "rgb(160, 255, 21)",
      "tab_line": "rgb(0, 0, 0)",
      "popup": "rgb(40, 41, 40)",
      "popup_text": "rgb(160, 255, 21)",
      "tab_loading": "rgb(0, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{56b0621f-ef6e-48f9-afe9-f53cee02d277}"
    }
  }
}