[docs] Add demo for styling charts with sx props

docs/data/charts/styling/SxStyling.js

@@ -0,0 +1,48 @@
+import * as React from 'react';
+import { BarChart, barElementClasses } from '@mui/x-charts/BarChart';
+import { axisClasses } from '@mui/x-charts/ChartsAxis';
+
+const labels = ['Group A', 'Group B', 'Group C', 'Group D', 'Group E'];
+const lData = [42, 24, 56, 45, 3];
+const rData = [57, 7, 19, 16, 22];
+const colors = ['#006BD6', '#EC407A'];
+
+export default function SxStyling() {
+  return (
+    <BarChart
+      sx={(theme) => ({
+        [`.${barElementClasses.root}`]: {
+          fill: theme.palette.background.paper,
+          strokeWidth: 2,
+        },
+        [`.MuiBarElement-series-l_id`]: {
+          stroke: colors[0],
+        },
+        [`.MuiBarElement-series-r_id`]: {
+          stroke: colors[1],
+        },
+        [`.${axisClasses.root}`]: {
+          [`.${axisClasses.tick}, .${axisClasses.line}`]: {
+            stroke: '#006BD6',
+            strokeWidth: 3,
+          },
+          [`.${axisClasses.tickLabel}`]: {
+            fill: '#006BD6',
+          },
+        },
+        border: `1px solid rgba(${theme.palette.mode === 'dark' ? '255,255,255' : '0, 0, 0'}, 0.1)`,
+        backgroundImage: `linear-gradient(rgba(${theme.palette.mode === 'dark' ? '255,255,255' : '0, 0, 0'}, 0.1) 1px, transparent 1px), linear-gradient(90deg, rgba(${theme.palette.mode === 'dark' ? '255,255,255' : '0, 0, 0'}, 0.1) 1px, transparent 1px)`,
+        backgroundSize: '35px 35px',
+        backgroundPosition: '20px 20px, 20px 20px',
+      })}
+      xAxis={[{ scaleType: 'band', data: labels }]}
+      series={[
+        { data: lData, label: 'l', id: 'l_id' },
+        { data: rData, label: 'r', id: 'r_id' },
+      ]}
+      colors={colors}
+      width={500}
+      height={300}
+    />
+  );
+}

docs/data/charts/styling/SxStyling.tsx

@@ -0,0 +1,49 @@
+import * as React from 'react';
+import { BarChart, barElementClasses } from '@mui/x-charts/BarChart';
+import { axisClasses } from '@mui/x-charts/ChartsAxis';
+
+const labels: string[] = ['Group A', 'Group B', 'Group C', 'Group D', 'Group E'];
+const lData: number[] = [42, 24, 56, 45, 3];
+const rData: number[] = [57, 7, 19, 16, 22];
+const colors: string[] = ['#006BD6', '#EC407A'];
+
+export default function SxStyling(): React.JSX.Element {
+  return (
+    <BarChart
+      sx={(theme) => ({
+        [`.${barElementClasses.root}`]: {
+          fill: theme.palette.background.paper,
+          strokeWidth: 2,
+        },
+        [`.MuiBarElement-series-l_id`]: {
+          stroke: colors[0],
+        },
+        [`.MuiBarElement-series-r_id`]: {
+          stroke: colors[1],
+        },
+        [`.${axisClasses.root}`]: {
+          [`.${axisClasses.tick}, .${axisClasses.line}`]: {
+            stroke: '#006BD6',
+            strokeWidth: 3,
+          },
+          [`.${axisClasses.tickLabel}`]: {
+            fill: '#006BD6',
+          },
+        },
+
+        border: `1px solid rgba(${theme.palette.mode === 'dark' ? '255,255,255' : '0, 0, 0'}, 0.1)`,
+        backgroundImage: `linear-gradient(rgba(${theme.palette.mode === 'dark' ? '255,255,255' : '0, 0, 0'}, 0.1) 1px, transparent 1px), linear-gradient(90deg, rgba(${theme.palette.mode === 'dark' ? '255,255,255' : '0, 0, 0'}, 0.1) 1px, transparent 1px)`,
+        backgroundSize: '35px 35px',
+        backgroundPosition: '20px 20px, 20px 20px',
+      })}
+      xAxis={[{ scaleType: 'band', data: labels }]}
+      series={[
+        { data: lData, label: 'l', id: 'l_id' },
+        { data: rData, label: 'r', id: 'r_id' },
+      ]}
+      colors={colors}
+      width={500}
+      height={300}
+    />
+  );
+}

docs/data/charts/styling/styling.md

@@ -128,3 +128,5 @@ Since the library relies on SVG for rendering, you can customize them as you do
 
 Chart components accept the `sx` props.
 From here, you can target any subcomponents with its class name.
+
+{{"demo": "SxStyling.js"}}