title: Any material-ui simple/basic themes collection similar to bootswatch?
body: <p>I've been looking for simple themes similar to <a href="https://bootswatch.com/" rel="nofollow noreferrer">https://bootswatch.com/</a> for material-ui.</p>
  <p>By &quot;simple&quot; I mean just the JSON/POJO that needs to be fed in <code>createMuiTheme</code>. It can contain any <code>overrides</code> of Global styles but preferably no component wrappers or other react jsx/tsx code.</p>
  <p>Am I missing any technical reason why such a basic theme collection does not exists ? Are global styles considered bad practice with material-ui ?</p>