I completely missed setTextSize 
Thanks a lot and sorry for the silly question

Thanks a lot and sorry for the silly question
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QuoteThe text size can't be changed directly in ListBox. You have to set the height of the items with setItemHeight. (The text size is internally set to 0.8 * itemHeight)
I did this so that you can easily predict the amount of visible items. If the height is 200 and you set the item height to 20 then there are 10 visible items. If you would be setting the text height then you have no idea how many items fit (since there has to be a small space between the lines).
