[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2025-07-31。"],[],[],null,["# Themes are a set of predefined color and style combinations you can apply to your reports. Applying a theme updates the style settings of your charts, tables, background color, and text, helping to ensure your reports are visually attractive and stylistically coherent.\n\nThe default theme\n-----------------\n\nAll new reports start with a default theme. The colors and style settings of this theme are designed to be both attractive and accessible to viewers with color blindness.\n\nApply a theme\n-------------\n\n1. Edit the report.\n2. In the toolbar, click **Theme and layout**.\n3. In the THEME tab, click the theme that you want to apply.\n\nCreate a custom theme\n---------------------\n\nCreate a custom theme by changing the current theme settings.\n\n1. [Sign in to Looker Studio.](https://lookerstudio.google.com)\n2. [Edit your report](/looker/docs/studio/edit-a-report).\n3. In the toolbar, click **Theme and layout.**\n4. At the top of the panel, click **Customize**.\n5. Use the settings in the *Edit theme* panel to customize the theme.\n\n### What you can customize\n\nThe **Edit theme** panel lets you customize the following settings:\n\n- **Primary styles:**\n - **Report background:** Sets a default page background color for all pages in report.\n - **Text style:** Sets default font color and font family for text in the report, including text boxes, data labels, legend labels, control labels.\n - **Component background and border:** Sets default background color, border color, border thickness, border shape, background opacity, and border line style.\n - **Border shadow:** Sets the default appearance of the border shadow on all components.\n- **Accent styles:** Sets default font color and font family for text accents, including table headers, filter control and date range control headers, and control \"apply\" buttons.\n- **Textbox styles:** Sets default background color, font color and font family, and border visibility for textboxes.\n- **Data styles:**\n - **Chart palette:** Customizes the colors used by charts that color by series.\n - **Chart styling default:** Sets the initial data coloring method used.\n - **Manage dimension values colors:** Sets the colors associated with your dimension data.\n - **Text contrast:** Sets the default behavior of the automatic contrast algorithm.\n - **Component grid style:** Sets the color of the chart and table grids.\n - **Positive and negative change colors:** Sets the appearance of the arrows and change metrics for charts that compare to previous periods.\n - **Chart header:** controls the behavior and color of the component header that provides options such as export, drill-down, sort, and reset action.\n\nOverride theme settings in a chart\n----------------------------------\n\nChanging an individual component's style settings overrides the current theme settings. Those changes are preserved if you apply a new theme.\n\nExtract a theme from an image\n-----------------------------\n\nYou can generate a custom theme based on the colors in an image. This lets you coordinate the text and data colors with an image in your report, such as a logo or product photo.\n\n**Create a custom theme from an image already in the report:**\n\n1. [Sign in to Looker Studio.](https://lookerstudio.google.com)\n2. [Edit your report](/looker/docs/studio/edit-a-report).\n3. Right-click the image, then select **Extract theme from image**.\n\n**Create a custom theme from an uploaded or web-based image:**\n\n1. [Sign in to Looker Studio.](https://lookerstudio.google.com)\n2. [Edit your report](/looker/docs/studio/edit-a-report).\n3. Open the *Theme and Layout* panel.\n4. At the bottom of the Theme tab, click **Extract theme from image**.\n5. Upload an image or provide a link to an image on the web.\n\nLooker Studio will generate several themes from the colors in the selected image. Choose one, then click **Apply**.\n\nReset a chart to the current theme\n----------------------------------\n\nTo restore a component you've changed back to the report theme:\n\n1. [Sign in to Looker Studio.](https://lookerstudio.google.com)\n2. [Edit your report](/looker/docs/studio/edit-a-report).\n3. Select the component.\n4. In the properties panel on the right, select the *STYLE* tab.\n5. At the bottom of the panel, click **Reset to report theme**.\n\nResetting a chart to the report theme won't reset any custom colors you've set in the [dimension value color map](/looker/docs/studio/the-dimension-value-color-map).\n\nLimits of themes\n----------------\n\n- Custom themes aren't shared across reports. To reuse a custom theme in another report, make a copy of the report with the custom theme.\n- Themes apply to the entire report. It's not possible to apply different themes on separate pages of a report. You can, however, override themes by styling individual components.\n- You can have one custom theme at a time. Modifying an existing theme creates a new custom theme, overwriting any previous custom theme.\n- Changing themes doesn't override any custom styles you've applied to text boxes."]]