Welcome to Mantine, React components library that you always wished for
Welcome to Mantine, React components library that you always wished for

ThemeIcon

Render icon inside element with theme colors

Import

Source

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Package

@mantine/core

Usage

Radius
Size
Color
import { ThemeIcon } from '@mantine/core';
import { IconPhoto } from '@tabler/icons-react';

function Demo() {
  return (
    <ThemeIcon>
      <IconPhoto style={{ width: '70%', height: '70%' }} />
    </ThemeIcon>
  );
}

Gradient variant

When variant prop is set to gradient, you can control gradient with gradient prop, it accepts an object with from, to and deg properties. If thegradient prop is not set, ThemeIcon will use theme.defaultGradient which can be configured on the theme object. gradient prop is ignored when variant is not gradient.

Note that variant="gradient" supports only linear gradients with two colors. If you need a more complex gradient, then use Styles API to modify ThemeIcon styles.

Gradient from
Gradient to
Gradient degree
import { ThemeIcon } from '@mantine/core';
import { IconHeart } from '@tabler/icons-react';

function Demo() {
  return (
    <ThemeIcon
      variant="gradient"
      size="xl"
      aria-label="Gradient action icon"
      gradient={{ from: 'blue', to: 'cyan', deg: 90 }}
    >
      <IconHeart />
    </ThemeIcon>
  );
}

Customize variants colors

You can customize colors for ThemeIcon and other components variants by adding variantColorResolver to your theme.

import { IconPhoto, IconFingerprint, IconError404 } from '@tabler/icons-react';
import {
  ThemeIcon,
  Group,
  MantineProvider,
  defaultVariantColorsResolver,
  VariantColorsResolver,
  parseThemeColor,
  rem,
  rgba,
  darken,
} from '@mantine/core';

const variantColorResolver: VariantColorsResolver = (input) => {
  const defaultResolvedColors = defaultVariantColorsResolver(input);
  const parsedColor = parseThemeColor({
    color: input.color || input.theme.primaryColor,
    theme: input.theme,
  });

  // Override some properties for variant
  if (parsedColor.isThemeColor && parsedColor.color === 'lime' && input.variant === 'filled') {
    return {
      ...defaultResolvedColors,
      color: 'var(--mantine-color-black)',
      hoverColor: 'var(--mantine-color-black)',
    };
  }

  // Completely override variant
  if (input.variant === 'light') {
    return {
      background: rgba(parsedColor.value, 0.1),
      hover: rgba(parsedColor.value, 0.15),
      border: `${rem(1)} solid ${parsedColor.value}`,
      color: darken(parsedColor.value, 0.1),
    };
  }

  // Add new variants support
  if (input.variant === 'danger') {
    return {
      background: 'var(--mantine-color-red-9)',
      hover: 'var(--mantine-color-red-8)',
      color: 'var(--mantine-color-white)',
      border: 'none',
    };
  }

  return defaultResolvedColors;
};

function Demo() {
  return (
    <MantineProvider theme={{ variantColorResolver }}>
      <Group>
        <ThemeIcon color="lime.4" variant="filled">
          <IconPhoto size={20} />
        </ThemeIcon>

        <ThemeIcon color="orange" variant="light">
          <IconFingerprint size={20} />
        </ThemeIcon>

        <ThemeIcon variant="danger">
          <IconError404 size={20} />
        </ThemeIcon>
      </Group>
    </MantineProvider>
  );
}

autoContrast

ThemeIcon supports autoContrast prop and theme.autoContrast. If autoContrast is set either on ThemeIcon or on theme, content color will be adjusted to have sufficient contrast with the value specified in color prop.

Note that autoContrast feature works only if you use color prop to change background color. autoContrast works only with filled variant.

import { IconFingerprint } from '@tabler/icons-react';
import { ThemeIcon, Group } from '@mantine/core';

function Demo() {
  return (
    <Group>
      <ThemeIcon size="lg" color="lime.4">
        <IconFingerprint size={20} />
      </ThemeIcon>
      <ThemeIcon size="lg" color="lime.4" autoContrast>
        <IconFingerprint size={20} />
      </ThemeIcon>
    </Group>
  );
}

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