May in fact need more yellow. Have the headstock painted in yellow and black swirl, then move the yellow sticker somewhere else and replace it with one that mimics a fretboard extension. You know, dark with 2 frets and one sharkfin in the middle. The guitar will then have suffered some irreversible mutations which have also affected the character and tone.
Just go to town.
L.E. The fine tuners and the saddle tops should be yellow/gold, the jury is still out on the tremolo bar.