Issue: MUI Custom Theme Not Applying
Solution:
1. Ensure Version Consistency:
Confirm that you're using a consistent version of the material-ui library. If you're using @material-ui, you're using v4. If you're using @mui, you're using v5. Make sure all your imports align with the version you're using.
2. Verify Import Paths:
Review your import statements for MUI components and styles. Ensure that you're importing from the correct location. For v5, use @mui/material, and for v4, use @material-ui/core.
import { createTheme, ThemeProvider } from "@mui/material/styles";
import { orange } from "@mui/material/colors";
3. Check for Conflicting Packages:
Sometimes, conflicting styling packages can cause issues with MUI's custom theme application. Try removing all MUI and styling packages and reinstalling them. This can help eliminate any potential conflicts.
4. Refer to Migration Documentation:
If you're migrating from v4 to v5, consult the official migration documentation provided by MUI. It offers detailed guidance on transitioning your codebase to the new version.
5. Consider Emotion10ThemeProvider:
In some cases, using the Emotion10ThemeProvider along with the regular ThemeProvider can help apply custom themes correctly. Refer to the example below:
import { ThemeProvider, createTheme } from "@mui/material/styles";
import { ThemeProvider as Emotion10ThemeProvider } from "emotion-theming";
const defaultTheme = createTheme(); // or your custom theme
<Emotion10ThemeProvider theme={defaultTheme}>
<ThemeProvider theme={defaultTheme}>
<Story {...context} />
</ThemeProvider>
</Emotion10ThemeProvider>
By following these steps and exploring additional resources, you should be able to resolve the issue of your MUI custom theme not applying.