When `panelTexture` is defined, it overrides custom panel...

[DrprofLuigi]

...however if it is not defined, then the 'instrument adding screen' uses the OCP texture.

A seemingly easy fix would be to prevent panelTexture from overriding the custom panel definitions.

I have a separate texture for panelTexture and the custom panel, that way when instruments are being added, the buttons are there.

Proper panel vs. broken panel: