User blog comment:Kogath/Monster Hunter X Discussion/@comment-184612-20150920024630

Dinovaldo's armor seems to have a special skill that gives a white outline around the Sharpness Bar when you sharpen. We've seen it on Gunlance as well, so it's not a coating, and it was also using Dinovaldo armor.

https://twitter.com/MHKogath/status/645415135788470272/photo/1