How do I remove widget color?

[anonymous_user_7f917b771 (anonymous_user_7f917b77)]

I’m making a 3D menu and I was wondering, how do I remove the color from the widget shown in the picture below? I tried making the opacity to 0 but all the buttons and text also go to 0.

Any help?

[Everynone]

Sounds like you tried adjusting Content Color and Opacity - which would affect all children; if you want a transparent border, setting the border’s Brush Color’s Alpha to 0 should do it: