Gradient problems in Java

Question

In my program I wanted to have a translucent white to transparent gradient on my JFrame to overlay a yellow background. This works fine and it needs to be a white to transpa

Answer 1

My guess is that it's about the 'graphics pipeline' that's being used on the different computers.

Java has several different pipelines, here is some information about them.

On my computer I can use the X11 pipeline, or the OpenGL pipeline. With the X11 pipeline the darkness occurs; on OpenGL, it doesn't.

On Windows you can choose from 3 different pipelines, and even then (looking at the link above), there can be differences.

I can't immediately imagine what's the configuration your school has, and why it's different, but you can try to investigate.

You might want to file this difference as a bug.