There is a color weakness requirement.
Because in actual work, there are many things to be distinguished by color, there is no way, the national standard is so set.
Since the invention of the integrated circuit (IC), with the development of silicon plane technology, the 1960s has invented bipolar and MOS two important integrated circuits, it marks the era of electronic tube and transistor manufacturing electronic machine has taken a quantum and qualitative leap, creating an unprecedented penetration and vitality of the emerging industry integrated circuit industry.
There will be, but in each case, digital design and verification are basically unaffected, and the backend and simulation will still be affected.
The back end may have an effect because the individual physical layers of the layout are displayed by color