Yes

Purple has also been used for the Eyecon (the 'iris' anyway), the Fullbottles and the Progrise Key.

(The Progrise Key is mostly black, but that's standard for all keys; the unique colours to them are on the labels and the small circle on the right)

So yeah, Eagle’s colors make sense.

Ichigou has silver on him(when he's Shin Ichigou especially)

Given an image I found, apparently OOO’s Vistamp would have a yellow background with a green animal, the opposite of what Cheetah has. With this information, Cheetah is more likely to be one of these four:
1. Shin
2. ZO
3. J
4. Amazon

What image?

I don’t know how to upload it, but it shows the background colors for the Vistamps corresponding to all the past Riders, and OOO has a yellow background. I’m guessing the animal image of that Vistamp would be green. X and Kabuto have light blue; the yellow is shared by OOO, Kiva, Zero-One, and Agito; Hibiki has purple; Blade and Riderman have dark blue; Nigo, V3, Stronger, ZX, Ryuki, Wizard, Drive, Build, and Saber all have red backgrounds.

then is there a link or something? I'm betting it's just a fanmade thing

It’s based on this video where the Driver is forced to reveal the colors it glows when transforming into various Genome forms.right here


Seem familiar? I think someone already linked to it.

It is theorized that the rule for the screen glow is that it matches the clear part of the Vistamp. But the image is made by EternalRider97 (https://www.deviantart.com/eternalrider97)