Does the patent appearance and lens size have to correspond?

In fact, the requirements of patent drawings for appearance are not as strict as those of six-sided drawings, but they should be completely corresponding, but the deviation should not be too large. For example, the dimensions of the six views taken should be as consistent as possible, but the outer contour lines should not completely overlap. There are also problems such as avoiding reflection when taking pictures, or fusing the color of the object with the background color. Basically, it's nothing serious. The photos taken can also be slightly modified and adjusted by PS.