Theme might be use invalid color format

[NaClYen]

error

The #fffff (with 5 times f) cause this issue:

It makes lots of component backgrounds to be transparent. (dropdown, dialog...etc)

code

When I modified this... https://github.com/christopher-caldwell/vite-material-ui/blob/b651a2988e0ce1bfc470d6904dbc02b4708a1b51/src/providers/Theme.tsx#L27

that to #ffffff, everything works well as I expect.

[christopher-caldwell]

Good catch, thanks!