[Bug - Linux] Selection box in Preview & Select is not visible when using a dark theme

[LFd3v]

Hey, there!

Thank you a lot for jsignpdf. The first time I used it, I could not figure out how to place the signature on a PDF besides adjusting manually the (x,y) position. After watching a video tutorial I realized there should be a selection box, but it was not visible for me because I was using a dark theme on Gnome and the selection box was white, over a white background. Please see the attached screenshot.

I changed the theme to light, and then I could see the selection box and use the app.

Gnome 45.2 on Arch Linux
jsignpdf 2.2.2-1
openjdk 11.0.21 2023-10-17
OpenJDK Runtime Environment (build 11.0.21+9)
OpenJDK 64-Bit Server VM (build 11.0.21+9, mixed mode)

Please feel free to ask for more info or tests.

Regards.