Features suggest

Idk these features are open in the Paid version or not.

1. Bold, Italic, Underline

2. Allow users to have a colour change or text style on their cards

3. Allow users to add their symbols or equations, which is a very convenient tool for users in the math/engineering subjects, [e.g. symbols (sigma, alpha, beta, gamma), equations (x^square, x_0, etc)

I hope it is useful.

BTW. MBBS founders 加油!! I like watching your reels and videos. You guys help a lot of people weather their storm, either for now or in the future.