Thank you for your feedback. I regret that there is no magnetic tape available with a white coating on the active, face side. As you know, the outline you see when the panel is in place is the reverse, sticky side of the tape with its white foam backing. This white is UV stable and does not discolour with age and is a pretty good white, which you see through the clear acrylic. It's only when When a panel is removed that you see the brown of the surface of the tape. As we do stress on the web-site, the tape that remains on the window frame can be painted over WITHOUT ANY ADVERSE EFFECT ON THE PULLING POWER OF THE MAGNETS. The edges of this tape can also be painted which will help with long-term adhesion and eliminate the black of one of the narrow edge lines.
I hope this helps.
Regards
Richard Cutts
