GetLegendGraphic without label

[listuser HH]

Hello,

is there a way for WMS server to create a legend graphic without having
the label included? I saw that the client can define a rule to get only
the symbol but can't this also be done on server side?

The problem is that the created image is much bigger than the size hints
in the getCapabilities because of the label. The client who consumes the
service use the size hint for the legend graphic and label it itself so
the symbol is not identifiable.

Any ideas?

Thanks in advance
Norbert