How to draw numbers animatedly on canvas by example?

Question

JavaScript

https://enchroma.com/pages/color-blindness-test?fo...
I roughly understand that there are 10 drawing patterns, and they are filled with different colors, but I would be very grateful if they would give some tips where take a look, etc., since I have never worked with canvas, thanks in advance!)

Answer 1

Well, you can, for example, like this https://jsfiddle.net/twobomb/wbauo0gq/
PS I also upgraded a little https://jsfiddle.net/twobomb/pLsjmt1x/