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Advanced Theming

Now that you understand how to use Chakra UI theming API. Let's take a step further and see if we can adapt a component to color mode.

When defining the styles for the sizes or variants, you can either pass a style object or a function that returns a style object.

Single Part Component#

For a single part component like button, badge, etc. The style configuration has the following signature:

type StyleInterpolation = StyleObject | ((options: StyleOptions) => StyleObject)

interface StyleOptions {
  theme: Theme
  colorMode: "light" | "dark"
  colorScheme: string
}

interface StyleConfig {
  baseStyle: StyleInterpolation
  sizes: { [size: string]: StyleInterpolation }
  variants: { [variant: string]: StyleInterpolation }
  defaultProps?: {
    variant: string
    size: string
  }
}

type StyleInterpolation = StyleObject | ((options: StyleOptions) => StyleObject)
interface StyleOptions {
  theme: Theme
  colorMode: "light" | "dark"
  colorScheme: string
}
interface StyleConfig {
  baseStyle: StyleInterpolation
  sizes: { [size: string]: StyleInterpolation }
  variants: { [variant: string]: StyleInterpolation }
  defaultProps?: {
    variant: string
    size: string
  }
}

For example, to create a simple badge that changes its background based on color mode. Here's how to go about it.

import { extendTheme, theme } from "@chakra-ui/core"

// 1. define component configuration
const components = {
  CustomBadge: {
    baseStyle: ({ colorMode }) => ({
      bg: colorMode === "dark" ? "green.300" : "green.500",
      color: colorMode === "dark" ? "gray.800" : "white",
      textTransform: "uppercase",
      fontWeight: "semibold",
      letterSpacing: "0.02em",
      padding: "4px",
      borderRadius: "2px",
      fontSize: "12px",
    }),
  },
}

// 2. add it to the theme and mount on `ChakraProvider`
const customTheme = mergeWith(theme, { components })

// 3. Use it in your components
function CustomBadge(props) {
  const { size, variant, ...rest } = props
  const styles = useStyleConfig("CustomBadge", { size, variant })
  return <Box as="span" sx={styles} {...rest} />
}

// 4. Use the component
render(<CustomBadge>I am a custom badge</CustomBadge>)

import { extendTheme, theme } from "@chakra-ui/core"
// 1. define component configuration
const components = {
  CustomBadge: {
    baseStyle: ({ colorMode }) => ({
      bg: colorMode === "dark" ? "green.300" : "green.500",
      color: colorMode === "dark" ? "gray.800" : "white",
      textTransform: "uppercase",
      fontWeight: "semibold",
      letterSpacing: "0.02em",
      padding: "4px",
      borderRadius: "2px",
      fontSize: "12px",
    }),
  },
}
// 2. add it to the theme and mount on `ChakraProvider`
const customTheme = mergeWith(theme, { components })
// 3. Use it in your components
function CustomBadge(props) {
  const { size, variant, ...rest } = props
  const styles = useStyleConfig("CustomBadge", { size, variant })
  return <Box as="span" sx={styles} {...rest} />
}
// 4. Use the component
render(<CustomBadge>I am a custom badge</CustomBadge>)

Multipart or Composite Component#

When it comes to multipart components like tabs, menus, etc. that have multiple sub-parts, you can also style them based on the color mode. Here's the signature:

type StyleInterpolation =
  | { [part: string]: SystemStyleObject }
  | ((options: StyleOptions) => { [part: string]: SystemStyleObject });

interface StyleOptions {
  theme: Theme
  colorMode: "light" | "dark"
  colorScheme: string
}

interface StyleConfig {
  baseStyle: StyleInterpolation
  sizes: { [size: string]: StyleInterpolation }
  variants: { [variant: string]: StyleInterpolation }
  defaultProps?: {
    variant: string
    size: string
  }
}

type StyleInterpolation =
  | { [part: string]: SystemStyleObject }
  | ((options: StyleOptions) => { [part: string]: SystemStyleObject });
interface StyleOptions {
  theme: Theme
  colorMode: "light" | "dark"
  colorScheme: string
}
interface StyleConfig {
  baseStyle: StyleInterpolation
  sizes: { [size: string]: StyleInterpolation }
  variants: { [variant: string]: StyleInterpolation }
  defaultProps?: {
    variant: string
    size: string
  }
}

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Advanced Theming

.css-12m0k8p{pointer-events:auto;}Single Part Component.css-1l2j62r{color:#319795;font-weight:400;outline:none;opacity:0;margin-left:0.375rem;}.css-1l2j62r:focus,.css-1l2j62r[data-focus]{opacity:1;box-shadow:0 0 0 3px rgba(66,153,225,0.6);}#

Multipart or Composite Component#

Single Part Component#