Instrument Cluster Blue Lenses

If I use blue LED bulbs for the backlight for the gages (I have installed white overlays), should I remove the 3 blue lenses from the frame? If I leave them I am afraid that the blue will be too dark. Also, (two questions, 1 post) what should I use to seal the cluster cover? It was the standard woodgrain, but I painted it black with silver trim. Any suggestions??

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