Different Smoke Colors for Different Assets

Just an idea I had (more for immersion/variety reasons than actual game play) but what about different smoke colored smoke grenades for different assets? I've heard commanders asking SL's what kind of support they want for their strikes, so this might eliminate the time it takes for a commander to see what a squad needs. The color would link directly to that specific asset

For example
Purple - Arty
Yellow - Spooky
Red - Napalm
Green - Recon

It's probably more work than it's worth, but it's just an idea.

Different Smoke Colors for Different Assets