fix one more

CHANGELOG.md

@@ -1100,7 +1100,7 @@ A big thanks to the 18 contributors who made this release possible.
 
 ### Docs
 
-- Add `theme.applyStyles` and migrate docs (#42498) @siriwatknp
+- Add `theme.applyStyles()` and migrate docs (#42498) @siriwatknp
 - Fix dashboard template console error (#42594) @oliviertassinari
 - Migrate system props to `sx` prop (#42475) @siriwatknp
 - [material-ui]Fix duplicated sentence (#42521) @alexfauquette

CHANGELOG.old.md

@@ -918,7 +918,7 @@ This release was mostly about 🐛 bug fixes and 📚 documentation improvements
 
 - [zero-runtime] Use lodash instead of its subpackages (#40868) @michaldudak
 - Add `applyStyles()` to theme (#40667) @siriwatknp
-- [zero] Use `theme.applyStyles` in the demo app (#40787) @siriwatknp
+- [zero] Use `theme.applyStyles()` in the demo app (#40787) @siriwatknp
 - [zero] Add `useThemeProps` processor (#40648) @siriwatknp
 
 ### `@mui/[email protected]`

docs/data/material/customization/css-theme-variables/configuration.md

@@ -128,7 +128,7 @@ For SSR (server-side rendering) applications, Material UI can not detected user
 
 To prevent the issue, you need to ensure that there is no usage of `theme.palette.mode === 'dark'` in your code base.
 
-If you have such a condition, replace it with the [`theme.applyStyles`](#appling-dark-styles) function:
+If you have such a condition, replace it with the [`theme.applyStyles()`](#appling-dark-styles) function:
 
 ```diff
  import Card from '@mui/material/Card';

docs/data/material/customization/css-theme-variables/usage.md

@@ -48,7 +48,7 @@ If you want to be able to manually toggle modes, see the guide to [toggling dark
 
 ## Applying dark styles
 
-To customize styles for dark mode, use `theme.applyStyles` function.
+To customize styles for dark mode, use `theme.applyStyles()` function.
 This utility function will return the right selector.
 
 The example below shows how to customize the Card component for dark mode:

docs/data/material/customization/dark-mode/dark-mode.md

@@ -156,7 +156,7 @@ If you are using the `InitColorSchemeScript` component to [prevent SSR flicker](
 
 ## Styling in dark mode
 
-Use the `theme.applyStyles` utility to apply styles for a specific mode.
+Use the `theme.applyStyles()` utility to apply styles for a specific mode.
 
 We recommend using this function over checking `theme.palette.mode` to switch between styles as it has more benefits:
 

docs/data/material/migration/upgrade-to-v6/upgrade-to-v6.md

@@ -450,7 +450,7 @@ See [CSS theme variables](/material-ui/customization/css-theme-variables/overvie
 
 ### Color mode theme utility
 
-Material UI v6 introduces a new utility for adding styles to specific color modes called `theme.applyStyles`, designed to replace `theme.palette.mode` when applying light or dark styles:
+Material UI v6 introduces a new utility for adding styles to specific color modes called `theme.applyStyles()`, designed to replace `theme.palette.mode` when applying light or dark styles:
 
 ```diff
  const MyComponent = styled('button')(({ theme }) => ({
@@ -464,7 +464,7 @@ Material UI v6 introduces a new utility for adding styles to specific color mod
  }))
 ```
 
-Use these codemods to migrate your project to `theme.applyStyles`:
+Use these codemods to migrate your project to `theme.applyStyles()`:
 
 ```bash
 npx @mui/codemod@latest v6.0.0/styled <path/to/folder-or-file>

docs/pages/blog/material-ui-v6-is-out.md

@@ -243,7 +243,7 @@ It also works with the `sx` prop:
 
 ### New method of applying styles
 
-The new API `theme.applyStyles` has been added for creating specific mode styles.
+The new API `theme.applyStyles()` has been added for creating specific mode styles.
 It's designed to replace the `theme.palette.mode === 'dark'` condition to fix the SSR flickering issue when combined with the CSS theme variables feature.
 
 <codeblock>