[TypeScript] Make createMuiTheme's ThemeOptions recursively partial (m…

…ui#7993)
jtag05 · Sep 1, 2017 · a8140ef · a8140ef
1 parent 585783e
commit a8140ef
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/src/styles/createMuiTheme.d.ts b/src/styles/createMuiTheme.d.ts
@@ -24,5 +24,7 @@ export type Theme<T = {}> = {
   T;
 
 export default function createMuiTheme<T = {}>(
-  options?: Partial<ThemeOptions> & T
+  options?: {
+    [K in keyof ThemeOptions]?: Partial<ThemeOptions[K]>
+  } & T
 ): Theme<T>;
diff --git a/test/typescript/styles.spec.tsx b/test/typescript/styles.spec.tsx
@@ -70,6 +70,12 @@ const theme = createMuiTheme({
   },
 });
 
+const customTheme = createMuiTheme({
+  palette: {
+    type: 'dark'
+  }
+});
+
 function OverridesTheme() {
   return (
     <MuiThemeProvider theme={theme}>