Question: Maplets: Button - Line break

I've a problem with the buttons. It's not a problem to make a line break, but if I reload or change the text into my button (while the program ist running) maple/maplets ignores all line breaks.

Here is an small example (maybe not the best):

with(Maplets[Elements]): ToGreen := proc()
Maplets:-Tools:-Set(B(caption) = "blue\nhallo");
end proc:

maplet := Maplet([   
Button[B](caption="Blue\nhallo",  background = red,  
SetOption(G(caption) = "neuer\nname")   
Button[G]("Green", Evaluate(
function = 'ToGreen()' )   

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