Generally, the company's logo has clear practical specifications, including the colors, scenes, contrast with the background and so on. Some signs are a combination of graphics and characters. There may be many combinations of these logos, but they are all fixed and cannot be changed.

But the logo is not unchanged for ten thousand years. For example, Apple's logo has changed seven or eight times. Thirdly, logo represents the screen image of a company. The times have changed, the company concept has changed, and the logo will be updated with the times.

I hope I can help you!