Examine source code of EasyShortcuts

{
  "manifest_version": 2,
  "name": "EasyShortcut",
  "version": "1.1resigned1",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "128": "icon.png"
  },
  "commands": {
    "command1": {
      "suggested_key": {
        "default": "Alt+G",
        "mac": "Alt+G"
      },
      "description": "This is the first command, done by pressing Alt+G"
    },
    "command2": {
      "suggested_key": {
        "default": "Alt+Y",
        "mac": "Alt+Y"
      },
      "description": "This is the second command, done by pressing Alt+Y"
    },
    "command3": {
      "suggested_key": {
        "default": "Alt+O",
        "mac": "Alt+O"
      },
      "description": "This is the third command, done by pressing Alt+O"
    },
    "command4": {
      "suggested_key": {
        "default": "Ctrl+Y",
        "mac": "Command+Y"
      },
      "description": "This is the fourth command, done by pressing Ctrl+Y"
    },
    "command5": {
      "suggested_key": {
        "default": "Alt+A",
        "mac": "Alt+A"
      },
      "description": "This is the fifth command, done by pressing Alt+A"
    },
    "command6": {
      "suggested_key": {
        "default": "Alt+W",
        "mac": "Alt+W"
      },
      "description": "This is the sixth command, done by pressing Alt+W"
    },
    "command7": {
      "suggested_key": {
        "default": "Alt+K",
        "mac": "Alt+K"
      },
      "description": "This is the seventh command, done by pressing Alt+K"
    },
    "command8": {
      "suggested_key": {
        "default": "Alt+U",
        "mac": "Alt+U"
      },
      "description": "This is the eighth command, done by pressing Alt+U"
    },
    "command9": {
      "suggested_key": {
        "default": "Alt+M",
        "mac": "Alt+M"
      },
      "description": "This is the ninth command, done by pressing Alt+M"
    },
    "command10": {
      "suggested_key": {
        "default": "Alt+L",
        "mac": "Alt+L"
      },
      "description": "This is the ninth command, done by pressing Alt+L"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e7a576bd-38d7-4f83-9cdf-add0cefc94c4}"
    }
  }
}