Dash Color Change
#2
If by "dash" you mean instrument cluster, then the answer is that they are not LEDs but bulbs with colored caps on them. However just changing the bulb caps won't give you much of a different gauge color since they are also colored by printing red/orange on the back of the plastic sheets that the graphics are on.
I would assume that other interior parts are by bulb also, and not LED.
I would assume that other interior parts are by bulb also, and not LED.