新版翻译已开始，一起来翻译吧

我已经把文档整理成了 Markdown 格式，并把英文原文以注释的形式保留在了 Markdown 文件中，方便进行逐行对照翻译。

如何参与翻译

1. fork 主仓库
2. 在 README.md 的 “待认领的文件” 下面选择一个你想认领的文件，将其剪贴到 “翻译中的文件”下面，并在文件名后面写上 (@你的github名)，给主仓库的 v2 分支提 pull request
3. 提的 pull request 被确认，合并到主仓库后，代表你已认领完成，可以开始翻译。认领完成后，请在 5 天内完成翻译并提交 pull request，否则我会认为你已放弃翻译，会将该文件重新移回到 “待认领的文件”中。
4. 翻译完成后，提交 pull request 给主仓库的 v2 分支
5. 校验人员可能会给你的翻译提出一些意见，你需要按修改意见进行修改。待 pull request 被合并后，代表该文件翻译完成

如何生成文档

我们使用 PHP 来生成最终的 HTML 文件，生成的文件位于 dist 目录中。

注意：提交翻译时，只需提交 src 目录中的文件即可，无需提交 dist 目录。

# 进入 build 目录
cd build
# 安装依赖
composer install
# 生成 HTML 文件
php build.php

待认领的文件

• src/components/sheets-bottom.md
• src/components/sheets-side.md
• src/components/sliders.md
• src/environment/elevation.md
• src/environment/surfaces.md
• src/foundation-overview/index.md
• src/guidelines-overview/index.md
• src/iconography/animated-icons.md
• src/iconography/product-icons.md
• src/iconography/system-icons.md
• src/interaction/gestures.md
• src/interaction/selection.md
• src/interaction/states.md
• src/introduction/index.md
• src/layout/component-behavior.md
• src/layout/density.md
• src/layout/responsive-layout-grid.md
• src/layout/spacing-methods.md
• src/layout/understanding-layout.md
• src/material-theming/implementing-your-theme.md
• src/material-theming/overview.md
• src/motion/choreography.md
• src/motion/customization.md
• src/motion/speed.md
• src/motion/understanding-motion.md
• src/platform-guidance/android-fingerprint.md
• src/platform-guidance/android-haptics.md
• src/platform-guidance/android-icons.md
• src/platform-guidance/android-navigating-between-apps.md
• src/platform-guidance/android-notifications.md
• src/platform-guidance/android-permissions.md
• src/platform-guidance/android-settings.md
• src/platform-guidance/android-split-screen.md
• src/platform-guidance/android-swipe-to-refresh.md
• src/platform-guidance/android-text-selection-toolbar.md
• src/platform-guidance/android-widget.md
• src/platform-guidance/cross-platform-adaptation.md

翻译中的文件

• src/color/the-color-system.md (@VCEtwp)
• src/typography/language-support.md (@PaperFlu)
• src/typography/the-type-system.md (@PaperFlu)
• src/typography/understanding-typography.md (@PaperFlu)
• src/usability/index.md (@PaperFlu)
• src/navigation/navigation-transitions.md (@zhiwei-xu)
• src/navigation/understanding-navigation.md (@zhiwei-xu)

已翻译完成的文件

• src/color/color-usage.md (@zdhxiong)
• src/color/text-legibility.md (@Minoyu)
• src/color/applying-color-to-ui.md (@VCEtwp)
• src/communication/confirmation-acknowledgement.md (@zdhxiong)
• src/communication/data-formats.md (@zdhxiong)
• src/communication/empty-states.md (@zdhxiong)
• src/communication/gesture-education.md (@zdhxiong)
• src/communication/help-feedback.md (@zdhxiong)
• src/communication/imagery.md (@zdhxiong)
• src/communication/launch-screen.md (@zdhxiong)
• src/communication/onboarding.md (@zdhxiong)
• src/communication/writing.md (@zdhxiong)
• src/shape/about-shape.md (@PaperFlu)
• src/shape/shape-as-expression.md (@PaperFlu)
• src/shape/shape-hierarchy.md (@PaperFlu)
• src/shape/shape-motion.md (@PaperFlu)
• src/components/app-bars-bottom.md (@zdhxiong)
• src/components/app-bars-top.md (@zdhxiong)
• src/components/backdrop.md (@zdhxiong)
• src/components/banners.md (@zdhxiong)
• src/components/bottom-navigation.md (@zdhxiong)
• src/components/buttons.md (@zdhxiong)
• src/components/buttons-floating-action-button.md (@zdhxiong)
• src/components/cards.md (@zdhxiong)
• src/components/chips.md (@zdhxiong)
• src/components/data-tables.md (@zdhxiong)
• src/components/dialogs.md (@zdhxiong)
• src/navigation/search.md (@zhiwei-xu)
• src/components/dividers.md (@zdhxiong)
• src/components/image-lists.md (@zdhxiong)
• src/components/lists.md (@zdhxiong)
• src/components/menus.md (@zdhxiong)
• src/components/progress-indicators.md (@Chheese)
• src/components/navigation-drawer.md (@zdhxiong)
• src/components/snackbars.md (@kengwang)
• src/components/tabs.md (@Chheese)
• src/components/selection-controls.md (@zdhxiong)
• src/components/text-fields.md (@kengwang)
• src/environment/light-shadows.md (@O7I2)
• src/platform-guidance/android-bars.md (@Chheese)
• src/components/tooltips.md (@MrWillCom)