Anyone know what could be causing these UI issues?

[Gildamore]

All of my chat windows and main inventory window are translucent but certain windows like my spellbook and bag windows have the stoney texture. Was this done intentionally? or is there a way to give every window the stoney texture? Thanks in advance!

[Kavious]

Right click windows and change the settings:

Background > Texture (Will turn white)
Background > Tint Color (Pick any reasonable color)

No way to make everything Stone, but you can make them a solid color