Why can I use white-colored text with TexPoint?
This is because some of the tools that TexPoint uses (e.g., Ghostscript) get confused if you use white foreground. Here is what I recommend, if you use the color package of latex. Instead of \color{white}, use \color[rgb]{0.9,0.9,0.9}. This will make your background “almost-white”, but still distinct from true white. Both your human viewers and the tools should be happy with this.