After Effects中的可变字体工具，可以控制AE文字的粗细动态变化，以每个字母作为变化控制

A Variable Font is a single font that acts as multiple fonts. Using dynamic attributes such as width, weight, serif and others, variable fonts can be modified live t’s hardly an overstatement to claim that the variable font might revolutionize the way we design and use type, and it seems like we’re only beginning to tap into the possible implications that follow

支持的AE版本：

AE 2020, CC 2019，Win/Mac，中文版/英文版AE