Describe the feature

In AdiBags, the border that showed the rarity (common/rare/legendary) was thick and easy to see. In BetterBags, it is barely visible. It would be good to have an option to make it thicker.

Describe the implementation

In config window, there should be a slider controlling the size of the border.

Is there any progress on this? The border still seems to be either barely visible or glowy-and-covering-whole-frame. It would be good to be able to just set a thickness, like "3px".