# Darkside **An dark sidebar theme for [Mailspring](https://getmailspring.com). Created by [Jamie Wilson](http://jamiewilson.io)** #### Customize > **Open the theme directory** > If you're on a Mac, you can find the theme files at `/Library/Application Support/Mailspring/packages`. To get there quickly, use the key command Cmd + Shift + G and enter `/Library/Application Support/Mailspring/packages`. > **Change package.json** > In order to avoid conflicts between your custom theme and the pre-installed version, change `name` and `displayName` in `package.json` to: "name": "ui-darkside-custom", "displayName": "Darkside Custom", > **Edit LESS files** > Open the `ui-variables.less` file. To change colors, just comment out the default `@sidebar` and `@accent` variables and uncomment another theme or simply replace with your own colors. ```sass // Default @sidebar: #313042; @accent: #F18260; // Luna // @sidebar: #202C46; // @accent: #39DFF8; // Zond // @sidebar: #333333; // @accent: #F6D49C; // Gemini // @sidebar: #00203C; // @accent: #F6B312; // Mercury // @sidebar: #555; // @accent: #999; // Apollo // @sidebar: #3A1E15; // @accent: #F6AA1C; ``` ### Feedback If you have questions or suggestions, please submit an issue. If you need to, you can email me at [jamie@jamiewilson.io](mailto:jamie@jamiewilson?subject=Re: Darkside).