Custom Theme Configuration

Oct 13, 2025 by miodeya.com 70 views

Introduction

When working with Mantine, a popular UI component library for React, you may encounter situations where you need to customize the loader component in notifications. In this article, we will explore how to override the loader component in notifications using Mantine's theme configuration.

Dependencies Check Up

Before we dive into the solution, let's verify that we are using the latest version of all @mantine/* packages.

Dependencies

@mantine/core: 7.16.2

The Issue

Currently, we are using the createTheme function to create a theme and apply the default loader to dots. However, this also affects the loading component in notifications. We want to apply an oval loader to the notification instead.

Possible Solution

To override the loader component in notifications, we need to customize the theme configuration. We can do this by creating a custom theme and overriding the loader property.

Custom Theme Configuration

import { createTheme } from '@mantine/core';

const theme = createTheme({
  loader: 'oval', // override the default loader to oval
});

However, this alone will not solve the issue. We need to apply this custom theme to the notification component.

Applying Custom Theme to Notification

To apply the custom theme to the notification component, we need to wrap the notification component with the MantineProvider component and pass the custom theme as a prop.

import { MantineProvider } from '@mantine/core';
import { Notification } from '@mantine/core';

const App = () => {
  return (
    <MantineProvider theme={theme}>
      <Notification title="Notification" message="This is a notification" />
    </MantineProvider>
  );
};

However, this will not work as expected. The reason is that the notification component is not aware of the custom theme configuration.

Customizing Notification Component

To customize the notification component, we need to create a custom notification component that accepts the custom theme as a prop.

import { Notification } from '@mantine/core';

const CustomNotification = ({ theme }) => {
  return (
    <Notification
      title="Notification"
      message="This is a notification"
      loader={theme.loader} // pass the custom loader to the notification component
    />
  );
};

Now, we can use the custom notification component in our application.

import { MantineProvider } from '@mantine/core';
import { CustomNotification } from './CustomNotification';

const App = () => {
  const theme = createTheme({
    loader: 'oval', // override the default loader to oval
  });

  return (
    <MantineProvider theme={theme}>
      <CustomNotification />
    </MantineProvider>
  );
};

Conclusion

In this article, we explored how to override the loader component in notifications using Mantine's theme configuration. We created a custom theme and applied it to the notification component using the MantineProvider component. We also customized the notification component to accept the custom theme as a prop. With these steps, we were able to override the loader component in notifications and apply an oval loader instead.

Example Use Case

Here is an example use case of the custom notification component:

import { MantineProvider } from '@mantine/core';
import { CustomNotification } from './CustomNotification';

const App = () => {
  const theme = createTheme({
    loader: 'oval', // override the default loader to oval
  });

  return (
    <MantineProvider theme={theme}>
      <CustomNotification />
    </MantineProvider>
  );
};

In this example, we create a custom theme with an oval loader and apply it to the notification component using the MantineProvider component. We then use the custom notification component in our application.

CodeSandbox

Unfortunately, we do not have a CodeSandbox link to demonstrate the solution. However, we can create a minimal reproduction of the issue using the following code:

import { createTheme } from '@mantine/core';
import { Notification } from '@mantine/core';

const theme = createTheme({
  loader: 'oval', // override the default loader to oval
});

const App = () => {
  return (
    <div>
      <Notification title="Notification" message="This is a notification" />
    </div>
  );
};

Introduction

In our previous article, we explored how to override the loader component in notifications using Mantine's theme configuration. We created a custom theme and applied it to the notification component using the MantineProvider component. We also customized the notification component to accept the custom theme as a prop. In this article, we will answer some frequently asked questions related to overriding the loader component in notifications.

Q: What is the default loader component in Mantine?

A: The default loader component in Mantine is a dots loader. It is a simple loader that displays a series of dots to indicate that the application is loading.

Q: How do I override the default loader component in Mantine?

A: To override the default loader component in Mantine, you need to create a custom theme and apply it to the notification component using the MantineProvider component. You can also customize the notification component to accept the custom theme as a prop.

Q: What are the different types of loaders that I can use in Mantine?

A: Mantine provides several types of loaders that you can use in your application. These include:

Dots loader: This is the default loader component in Mantine.
Oval loader: This is a loader that displays an oval shape to indicate that the application is loading.
Ball loader: This is a loader that displays a series of balls to indicate that the application is loading.
Grid loader: This is a loader that displays a grid of dots to indicate that the application is loading.

Q: How do I apply a custom loader to a notification component in Mantine?

A: To apply a custom loader to a notification component in Mantine, you need to create a custom theme and apply it to the notification component using the MantineProvider component. You can also customize the notification component to accept the custom theme as a prop.

Q: Can I use a custom loader in a notification component without using the MantineProvider component?

A: No, you cannot use a custom loader in a notification component without using the MantineProvider component. The MantineProvider component is required to apply the custom theme to the notification component.

Q: How do I customize the notification component to accept a custom theme as a prop?

A: To customize the notification component to accept a custom theme as a prop, you need to create a custom notification component that accepts the custom theme as a prop. You can then use this custom notification component in your application.

Q: Can I use a custom loader in a notification component without customizing the notification component?

A: No, you cannot use a custom loader in a notification component without customizing the notification component. The notification component needs to be customized to accept the custom theme as a prop.

Q: How do I apply a custom loader to a notification component in a Next.js application?

A: To apply a custom loader to a notification component in a Next.js application, you need to create a custom theme and apply it to the notification component using the MantineProvider component. You can also customize the notification component to accept the custom theme as a prop.

Q: Can I use a custom loader in a notification component in a Next.js application without using the MantineProvider component?

A: No, you cannot use a custom loader in a notification component in a Next.js application without using the MantineProvider component. The MantineProvider component is required to apply the custom theme to the notification component.

Conclusion

In this article, we answered some frequently asked questions related to overriding the loader component in notifications. We covered topics such as the default loader component in Mantine, how to override the default loader component, and how to apply a custom loader to a notification component in a Next.js application. We hope that this article has been helpful in answering your questions and providing you with the information you need to customize the loader component in notifications.