Completely updated React, fixed #11, (hopefully)

goTorrentWebUI/node_modules/material-ui/es/styles/createMixins.d.ts

@@ -1,13 +1,19 @@
 import { Breakpoints } from './createBreakpoints';
 import { Spacing } from './spacing';
+import { StyleRules } from '../styles';
 
 export interface Mixins {
-  gutters: (styles: Object) => Object;
-  toolbar: Object;
+  gutters: (styles: React.CSSProperties) => React.CSSProperties;
+  toolbar: React.CSSProperties;
+  // ... use interface declaration merging to add custom mixins
 }
 
-export default function createMixins<T = {}>(
+export interface MixinsOptions extends Partial<Mixins> {
+  // ... use interface declaration merging to add custom mixin options
+}
+
+export default function createMixins(
   breakpoints: Breakpoints,
   spacing: Spacing,
-  mixins: T
-): Mixins & T;
+  mixins: MixinsOptions,
+): Mixins;