# Editing themes

The **theme editor** organizes all the elements of your online store in one place so you can easily design every page with theme templates, sections, and settings.

* Use the **editor toolbar** to undo or redo changes, save, and publish your theme.
* You can enable the **Inspector** to select, add, and move sections directly within the live preview.
* Change the size of the **preview** within your theme editor. You can choose desktop, mobile, or full screen.

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden></th><th data-hidden data-type="content-ref"></th></tr></thead><tbody><tr><td><mark style="color:blue;"><strong>Edit theme settings</strong></mark></td><td>Customize your online store’s site-wide styles and options.</td><td></td><td><a href="../theme-settings/theme-settings">theme-settings</a></td></tr><tr><td><mark style="color:blue;"><strong>Use page templates</strong></mark></td><td>Edit default page templates or create new page templates.</td><td></td><td><a href="../pages/templates/using-templates">using-templates</a></td></tr><tr><td><mark style="color:blue;"><strong>Add sections and blocks</strong></mark></td><td>Customize templates by adding sections and blocks in the side panel.</td><td></td><td><a href="../sections/overview/section-styles">section-styles</a></td></tr></tbody></table>

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden></th><th data-hidden data-type="content-ref"></th></tr></thead><tbody><tr><td><mark style="color:blue;"><strong>Edit default theme content</strong></mark></td><td>Edit your general theme content.</td><td></td><td><a href="editing-themes/edit-default-theme-content">edit-default-theme-content</a></td></tr><tr><td><mark style="color:blue;"><strong>Sell in multiple languages</strong></mark></td><td>Translate your store and theme.</td><td></td><td><a href="editing-themes/multiple-languages">multiple-languages</a></td></tr><tr><td><mark style="color:blue;"><strong>Show unique content for different markets</strong></mark></td><td>Use Shopify's Contexts to display content based on your customer's location.</td><td></td><td><a href="editing-themes/unique-content-for-markets">unique-content-for-markets</a></td></tr></tbody></table>