为什么CLI通常在深色背景上淡化文本，而GUI通常在浅色背景上使用（d）深色文本？

My experience is that CLIs were typically shown with light text on a darker background. For example, the IBM PC would use white/light gray (depending on your point of view), amber or green (the latter two for monochrome monitors) on black unless the software did something to change that, and the Commodore 64 IIRC used white on blue, and My experience is that CLIs were typically shown