The repo has a LICENSE that declares MIT. Bottom of README.md does too, with some caveats about fonts.

A lot of them have degrees of freedom which are wasted instead of being used to convey more information. For example, the "vector scope" visualization appears to just be some sort of Lissajous figure, whose scale is the only thing controlled by the sound.

Overall I agree I don't "see" a lot in most of these, but there are actually a few spectral visualizations in there that are a bit more telling

I guess you cannot see the almost-invisible borders of the images. They group the image and text together a bit better. But yeah, the design fails to be accessible in less ideal viewing conditions for sure.

thanks for the feedback! i’ve increased the spacing on mobile, so it should be clearer now which caption belongs to each animation.

thanks a bunch!