You could tell the ones who didn't know what they were doing by the invisible text littering their UIs under some color schemes. This continued into the Web era. There were tons of defective sites that overrode your system background color with a hard-coded white background, but didn't bother setting the text color to black.
The result was invisible text on any system with a "dark" (non-inverse) color scheme. DUHHHH
There are probably still millions of such sites today, but now UIs are so gimped that they hide the defect.
You could tell the ones who didn't know what they were doing by the invisible text littering their UIs under some color schemes. This continued into the Web era. There were tons of defective sites that overrode your system background color with a hard-coded white background, but didn't bother setting the text color to black.
The result was invisible text on any system with a "dark" (non-inverse) color scheme. DUHHHH
There are probably still millions of such sites today, but now UIs are so gimped that they hide the defect.