Jakly
Terrarian
Here you see a lone warrior with Solar Flare armor, the armor is bright, and pulsating.
Here you see a warrior with Solar Flare Armor, and the Sun Mask in the vanity slot. Since it doesn't count towards the armor set's visual effect it dims the armor, which ruins an otherwise perfect visual match.
Look at these mannequins, and how well the mask fits with the armor without the darkening effect, they were practically made for each other!