Actually, one thing I was thinking of trying was to make an insert for the buttons, masking out the button face except for an arrow shaped opening above where the LED would sit. This would give the illusion (I think) of just having the lighted arrow surrounded by a dark button with the edges of the button showing a little bit of illumination from the reflected light. Something I might try when I get a chance...
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Paul Grzelak
200GB with 48MB RAM, Illuminated Buttons and Digital Outputs