createMuiTheme 2nd argument type

In the documentation, it states that the 2nd argument of createMuiTheme is an array, however, while working with it, it turns out to be an object which is merged with the final theme object.

Just a suggestion, it would be great if createMuiTheme can take in a function with default theme as the first argument, just for the purpose of re-using certain values or methods. For Example:

createMuiTheme((theme) => ({
  overrides: {
    MuiIconButton: {
      root: {
        borderRadius: "10px",
        [theme.breakpoints.down("sm")]: { borderRadius: "0" },
      },
    },
  },
}));

[DanailH]

I can take this one if no one else wants it 😃

[kgregory]

@oliviertassinari I think the documentation is sufficient on this one.

It’s an array of attributes and most, but not all, are objects (e.g. direction is ltr or rtl).