@chriswood Looks neat! The sidebar list box would benefit from the .navigation-sidebar class: https://gnome.pages.gitlab.gnome.org/libadwaita/doc/main/style-classes.html#sidebars

@chriswood In GNOME apps with sidebars, the main menu (hamburger) button is usually placed to the right in the sidebar, not to the right in the entire window itself. Also, since the sidebar hides automatically on narrow window widths, the show/collapse button is usually not displayed when the window is that wide. You may choose to not follow that convention if you think it makes sense for your app, though 🙂

@chriswood No problem! Feel free to join the #app-dev:gnome.org room on Matrix for questions about coding/designing for GNOME, there are lots of helpful people there 💬