diff --git a/.dumi/theme/common/Color/ColorPalettes.tsx b/.dumi/theme/common/Color/ColorPalettes.tsx
index d689535050..2c4bd1729c 100644
--- a/.dumi/theme/common/Color/ColorPalettes.tsx
+++ b/.dumi/theme/common/Color/ColorPalettes.tsx
@@ -1,4 +1,4 @@
-import classnames from 'classnames';
+import classNames from 'classnames';
 import React from 'react';
 import Palette from './Palette';
 
@@ -80,7 +80,7 @@ const colors = [
 const ColorPalettes: React.FC<{ dark?: boolean }> = (props) => {
   const { dark } = props;
   return (
-    <div className={classnames('color-palettes', { 'color-palettes-dark': dark })}>
+    <div className={classNames('color-palettes', { 'color-palettes-dark': dark })}>
       {colors.map((color) => (
         <Palette key={color.name} color={color} dark={dark} showTitle />
       ))}
diff --git a/components/icon/index.en-US.md b/components/icon/index.en-US.md
index c5eb8eba3a..eb6bf437f4 100644
--- a/components/icon/index.en-US.md
+++ b/components/icon/index.en-US.md
@@ -12,11 +12,9 @@ demo:
 
 ## How to use
 
-Before use icons, you need to install `@ant-design/icons` package:
+Before use icons, you need to install [@ant-design/icons](https://github.com/ant-design/ant-design-icons) package:
 
-```bash
-npm install --save @ant-design/icons
-```
+<InstallDependencies npm='npm install @ant-design/icons --save' yarn='yarn add @ant-design/icons' pnpm='pnpm install @ant-design/icons --save'></InstallDependencies>
 
 ## List of icons
 
diff --git a/components/icon/index.zh-CN.md b/components/icon/index.zh-CN.md
index 09d0f3cffc..9d6434e3ef 100644
--- a/components/icon/index.zh-CN.md
+++ b/components/icon/index.zh-CN.md
@@ -13,11 +13,9 @@ demo:
 
 ## 使用方法
 
-使用图标组件，你需要安装 `@ant-design/icons` 图标组件包：
+使用图标组件，你需要安装 [@ant-design/icons](https://github.com/ant-design/ant-design-icons) 图标组件包：
 
-```bash
-npm install --save @ant-design/icons
-```
+<InstallDependencies npm='npm install @ant-design/icons --save' yarn='yarn add @ant-design/icons' pnpm='pnpm install @ant-design/icons --save'></InstallDependencies>
 
 ## 设计师专属
 
diff --git a/components/notification/PurePanel.tsx b/components/notification/PurePanel.tsx
index 40db5e56db..47327e97ac 100644
--- a/components/notification/PurePanel.tsx
+++ b/components/notification/PurePanel.tsx
@@ -20,8 +20,7 @@ export const TypeIcon = {
   loading: <LoadingOutlined />,
 };
 
-export function getCloseIcon(prefixCls: string, closeIcon?: React.ReactNode) {
-  if (closeIcon === null || closeIcon === false) return null;
+export function getCloseIcon(prefixCls: string, closeIcon?: React.ReactNode): React.ReactNode {
   return (
     closeIcon || (
       <span className={`${prefixCls}-close-x`}>
diff --git a/components/tag/index.tsx b/components/tag/index.tsx
index 2e8d87a454..06a5ed1b63 100644
--- a/components/tag/index.tsx
+++ b/components/tag/index.tsx
@@ -123,9 +123,9 @@ const InternalTag: React.ForwardRefRenderFunction<HTMLSpanElement, TagProps> = (
     typeof props.onClick === 'function' ||
     (children && (children as React.ReactElement<any>).type === 'a');
 
-  const iconNode = icon || null;
+  const iconNode: React.ReactNode = icon || null;
 
-  const kids = iconNode ? (
+  const kids: React.ReactNode = iconNode ? (
     <>
       {iconNode}
       <span>{children}</span>
@@ -134,7 +134,7 @@ const InternalTag: React.ForwardRefRenderFunction<HTMLSpanElement, TagProps> = (
     children
   );
 
-  const tagNode = (
+  const tagNode: React.ReactNode = (
     <span {...props} ref={ref} className={tagClassName} style={tagStyle}>
       {kids}
       {mergedCloseIcon}
diff --git a/components/tour/demo/mask.md b/components/tour/demo/mask.md
index 1252fd1faf..c7c8f3c3f3 100644
--- a/components/tour/demo/mask.md
+++ b/components/tour/demo/mask.md
@@ -4,4 +4,4 @@
 
 ## en-US
 
-custom mask style.
+Custom mask style.
diff --git a/components/tour/index.en-US.md b/components/tour/index.en-US.md
index 9830781c3f..d3a30d1d02 100644
--- a/components/tour/index.en-US.md
+++ b/components/tour/index.en-US.md
@@ -20,8 +20,8 @@ Use when you want to guide users through a product.
 <code src="./demo/basic.tsx">Basic</code>
 <code src="./demo/non-modal.tsx">Non-modal</code>
 <code src="./demo/placement.tsx">Placement</code>
-<code src="./demo/mask.tsx">custom mask style</code>
-<code src="./demo/indicator.tsx">custom indicator</code>
+<code src="./demo/mask.tsx">Custom mask style</code>
+<code src="./demo/indicator.tsx">Custom indicator</code>
 <code src="./demo/render-panel.tsx" debug>\_InternalPanelDoNotUseOrYouWillBeFired</code>
 
 ## API