Personalizing your computer with a new wallpaper or fresh theme is one of the first things people do when they initially set it up, and Chrome OS is no different. Here’s how to customize the background and theme on your Chromebook.

使用新墙纸或新主题个性化设置计算机是人们最初设置计算机时要做的第一件事，而Chrome操作系统也是如此。 以下是在Chromebook上自定义背景和主题的方法。

如何更换墙纸 (How to Change Your Wallpaper)

When choosing a wallpaper to use on your Chromebook, you can select from a wide range of pre-installed images or any of the images saved to your computer using the Wallpaper app.

选择要在Chromebook上使用的墙纸时，您可以从多种预安装的图像中选择，也可以选择使用“墙纸”应用程序保存到计算机中的任何图像。

The first thing you’re going to want to do is to open up the Wallpaper picker. Right-click—or two-finger tap—anywhere on the desktop, then click on “Set Wallpaper.”

您要做的第一件事是打开“墙纸”选择器。 在桌面上的任意位置单击鼠标右键(或两指点击)，然后单击“设置壁纸”。

The Wallpaper picker opens in a new window, and you have a few options to choose from for your new background. Select one of the categories from the left side of the window, then click on one of the many pictures on the right to set it as your wallpaper.

“墙纸”选择器会在新窗口中打开，您可以从几个选项中选择新的背景。 从窗口左侧选择类别之一，然后单击右侧的许多图片之一将其设置为墙纸。

By clicking on “Daily Refresh,” located at the top of the picture selections, your desktop wallpaper will switch to a new image at the start of each day. This is great for those of us that often get bored of looking at one picture for too long.

通过单击图片选择顶部的“每日刷新”，您的桌面墙纸将在每天开始时切换为新图像。 这对于那些常常厌倦了长时间看一张图片的人来说，是很棒的。

If you have some great photos of your own on your Chromebook and don’t want to use any of the pre-loaded pictures, choose “My Images,” located at the bottom of the list on the left side, then select a photo from the list provided, just like we did in the example above.

如果您在Chromebook上有自己的精美照片，并且不想使用任何预加载的照片，请选择左侧列表底部的“我的图像”，然后从中选择一张照片。提供的列表，就像我们在上面的示例中所做的一样。

Sometimes the images you have saved on your computer might show up a bit stretched or cropped due to conflicts in resolution between the image and your display. If that happens, scroll to the top and select either “Center” or “Center Cropped.” Depending on the resolution of the image, it could appear in the middle of your desktop with black borders around it or stretched out and slightly cropped, respectively.

有时，由于图像和显示器之间的分辨率冲突，您保存在计算机上的图像可能会显得有些拉伸或裁切。 如果发生这种情况，请滚动到顶部，然后选择“居中”或“裁剪中心”。 根据图像的分辨率，它可能会出现在桌面的中间，并带有黑色边框，或者分别拉长并略微裁切。

如何改变主题 (How to Change Your Theme)

Changing the theme on a Chromebook doesn’t actually change the appearance of the OS at all, instead what it does is changes the look and feel of Chrome to any of the offerings in the Chrome web store.

更改Chromebook上的主题实际上并不会改变操作系统的外观，而实际上是将Chrome的外观更改为Chrome网上应用店中的所有产品。

The easiest way to install a theme is to fire up Chrome and head on over to the Chrome web store to select fun and exciting new themes to spruce up the drab looking default theme that comes pre-installed. You can also take the long way there by heading into Settings > Appearance > Browse Themes.

安装主题的最简单方法是启动Chrome，然后转到Chrome网上应用店 ，选择有趣且令人兴奋的新主题，以修饰预装的单调默认主题。 您也可以通过进入设置>外观>浏览主题来进行大量工作。

Now that we have the Chrome web store opened up, you can browse for themes using the search bar, category selector (although, the only two options are Google and artists), or by rating.

现在我们已经开设了Chrome网上商店，您可以使用搜索栏，类别选择器(尽管只有两个选项是Google和Artist)或按等级浏览主题。

After you find a theme that fits your mood, click on it to go to the theme’s page.

找到适合您心情的主题后，单击该主题可转到主题页面。

Click “Add to Chrome” to add it to Chrome.

点击“添加到Chrome”将其添加到Chrome。

Note that when you add a theme to Chrome, it gets synced to your Google account, so if you sign in to Chrome on another device, the theme syncs on to that device as well. You can prevent that by heading to Settings > Sync and disabling the “Themes” toggle there.

请注意，将主题添加到Chrome时，该主题会同步到您的Google帐户，因此，如果您在另一台设备上登录Chrome，该主题也会同步到该设备。 您可以通过转到“设置”>“同步”并在此处禁用“主题”切换来防止这种情况。

Once the theme is installed, the “Add to Chrome” icon turns in to a grayed out “Added to Chrome” icon.

安装主题后，“添加到Chrome”图标将变成灰色的“添加到Chrome”图标。

The theme seamlessly applies itself to Chrome without you having to restart it.

该主题可以无缝地自动应用于Chrome，而无需重新启动。

如何删除主题 (How to Remove a Theme)

When you want to install a different theme to Chrome, simply follow the process outlined above. However, if you no longer want a theme installed to Chrome and would like to return to the classic one, you’ll need to restore Chrome to the default theme through the Settings app.

如果您想为Chrome安装其他主题，只需按照上述步骤进行即可。 但是，如果您不再希望将主题安装到Chrome并想恢复为经典主题，则需要通过“设置”应用将Chrome恢复为默认主题。

Open the Settings app and scroll down to the Appearance heading. Once here, click on “Reset to default,” next to the “Browser Themes” option.

打开“设置”应用程序，然后向下滚动到“外观”标题。 进入此处后，单击“浏览器主题”选项旁边的“重置为默认值”。

Alternatively, if you’re already in Chrome, click the menu icon, and click on “Settings,” or type chrome://settings/ into your address bar to go directly there.

或者，如果您已经在Chrome中，请单击菜单图标，然后单击“设置”，或在地址栏中输入chrome://settings/直接进入该位置。

Scroll down until you see the Appearance section, then under Themes click “Reset to Default.”

向下滚动直到出现“外观”部分，然后在“主题”下单击“重置为默认值”。

Because Chrome only keeps track of the most recent theme you’ve installed, you don’t need to remove any other themes. As soon as you click the button, everything goes back to how it used to be in the beginning: gray and white.

由于Chrome仅跟踪您安装的最新主题，因此您无需删除任何其他主题。 单击该按钮后，一切都会恢复到最初的样子：灰色和白色。

翻译自: https://www.howtogeek.com/409401/how-to-change-the-wallpaper-and-theme-on-your-google-chromebook/