• The issue is present in the latest release.
• I have searched the issues of this repository and believe that this is not a duplicate.

Current Behavior 😯

@oliviertassinari : Currently in the documentation there are the following colors for blueGrey:

But the following shades seem to be missing:
https://github.com/mui-org/material-ui/blob/33850e52ca32787fbc02b64d3225bac2d451612c/packages/material-ui/src/colors/blueGrey.d.ts#L49-L61

Expected Behavior 🤔

The following shades seem to be missing in the documentation for the following colors brown, gray, blueGrey.

Steps to Reproduce 🕹

import blueGrey from '@material-ui/core/colors/blueGrey';
console.log(blueGrey);

{
 50: "#eceff1"
 100: "#cfd8dc"
 200: "#b0bec5"
 300: "#90a4ae"
 400: "#78909c"
 500: "#607d8b"
 600: "#546e7a"
 700: "#455a64"
 800: "#37474f"
 900: "#263238"
 A100: "#cfd8dc"
 A200: "#b0bec5"
 A400: "#78909c"
 A700: "#455a64"
}