For future users wondering this. The process carries over to almost all the packs.
1. Click the Shading Tab
2. Click the part of the armor you want to color
3. Go to the Material Properties tab
4. Select the Visor material layer
5. Find and change the color zones until you find the one that is the color of the visor
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You can also go a step further and edit the Metallic and Roughness values directly underneath those color zones and it will make it look more reflective or plastic depending on what you are going for