Has anyone run across LED replacements for the back light bulbs for the climate control display, defroster, fog light, seat heater etc buttons?

I see some of the bulbs are JLM20308. Just wondering if there are LED versions.

At $5 - $8 each for the originals, I'd think someone would have DIY'd a replacement.

 

I purchased some recently for my A/C backlight but due to other factors I did not fit them. T4 neo wedges in blue, cost me $7 for 10 led's. They seem to be readily available.

 

I need to do this as well, but the reward vs effort is pretty low, imo...