xICON  L T IconName (no .info)

Icons act like buttons. Although they take up more space than the 
respective brush would take, they are very easy to implement.

The (L)eft and (T)op are where the icon will be placed and
IconName is the full path of the icon file you want to use, without
the ".info" extension

You can give "" as the icon name, if you want.
This means that you will give the icon name later.

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  See also :
    ChangeIcon