There is no such thing. There is such a requirement on the second-generation ID card, which is not found anywhere else. Moreover, it is said that your resume is becoming more and more humanized, so you can put your own personality photos, which makes it easier for people to understand your personality intuitively. However, before popularization, I suggest that you still use 1 to save color photos, which will be helpful for employment if you have a spirit and smile.