MATLAB's new dark theme makes pcaFS biplot difficult to read

[BoschiGiacomo]

Issue:

A dark theme option was added to MATLAB in 2025a release, having this setting on changes the background colour of figures and of the interactive biplot of the pcaFS function.

Due to this the interactive biplot is very difficult to read while using dark theme, as shown in the screenshots below, first with the light theme and after with dark theme.

Proposed solution:

Looking in the documentation, I found that there is a new function called "theme" that both tells us what theme a figure is using, and can also be used to change a single figure's theme.

My suggestion would be to use this function to change the theme of the interactive biplot to "light", so that it always displays as having a light theme on.

The documentation for the "theme" function can be found here: https://it.mathworks.com/help/releases/R2025b/matlab/ref/theme.html

Thanks for your attention, I remain at your disposal for further questions.

[MarcoRianiUNIPR]

@BoschiGiacomo thank you for your suggestion which has been incorporate in version 8.7.10.0

[BoschiGiacomo]

Thanks for looking into the problem!

I was exploring an alternative solution to changing the theme (mainly to avoid compatibility issues with older MATLAB versions) but it was creating more problems than it solved. In the end forcing the light theme is the most elegant and simple option.