java - Change JComboBox colourms how? -


i change color of selected combobox. not know name of event. not background or foreground, then? more on image:

http://i.stack.imgur.com/hnim3.png

a renderer works items in dropdown.

the same renderer used render value displayed in combo box when index value -1. however, background color controlled ui can't override it. 

uimanager.getcolor("combobox.selectionbackground");

property used control background have consistent laf indicates when combo box has focus. don't know of easy way control behaviour. need write custom ui sets background based on selected value.


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