The Custom Frames plugin is a powerful tool that allows you to turn web apps into customizable panes within Obsidian. With this plugin, you can add frames from popular sites like Google Keep, Todoist, and more, and customize their appearance with custom CSS and settings. You can also use the plugin's Markdown mode to display your custom frames in your notes, complete with options for height, style, and URL suffix. Additionally, the plugin includes a range of presets for popular services, making it easy to get started. Whether you're looking to streamline your workflow or simply add some extra functionality to Obsidian, Custom Frames is definitely worth checking out.