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How can I change component color prop value depending on the color scheme?

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color prop in all components uses Mantine CSS variables to resolve color value depending on the color scheme. You can define these variables with virtualColor function:

import { virtualColor, createTheme, MantineProvider } from '@mantine/core';

const theme = createTheme({
  colors: {
    primary: virtualColor({ name: 'primary', light: 'blue', dark: 'red' }),

function App() {
  return (
    <MantineProvider theme={theme}>
      <YourApp />