Can the Summoner Spells be Color Coded?

So, when you're in Team Builder, or even in draft mode, people tend to judge you based on your Summoners. But sometimes, they're only glancing and they see one or two things they don't like. My question here pertains to my specific situation, but I think this is an easy fix so we can remove it.

Most of the Summoners are easily identifiable at a glance. Heal is green, Teleport is purple, Ignite is red.

The problem is that Flash and Exhaust are both yellow. So when I take Smite as a support, the ADCs in TB automatically assume I won't be able to help them because they don't think I have Exhaust, when I do...Exhaust and Flash look very similar but I have still had to point out that I had Exhaust and not Flash to avoid being kicked (speaking from experience because I have been kicked simply because they saw I had Smite and thought I had Flash too).

Can we make Flash and Exhaust icons look different? Maybe Exhaust could be white instead of yellow?