What are some bugs and known issues with SpringGUI?
– The user interface elements have an opaque background. This is not a bug in SpringGUI but a general problem with java’s heavyweight awt components for which I don’t believe a workaround exists. The problem appears for example with OSX’ rounded buttons which have a visible background and are not transparently laid over the processing canvas. The workaround for this is to position your GUI elements prudently and over a region of a common single color background, then to set the elements’ background colors to this color. MacOS generally does not seem to be quite consistent about the way it handles GUI elements. Buttons are an example for things that look different in different JRE versions, and occasionally, elements quickly flash a bright border, when they receive events. If you’re working on a Windows system and want to design your Processing applications to be as cross-platform/cross-JRE as possible, make them a little larger than seems necessary and leave a bit of extra space around