Do you ever wonder why your coworker's Slack sidebar looks different than yours? It's probably because they customized it. You can tweak all sorts of settings in Slack, from how the sidebar behaves to how it looks. You should customize your Slack sidebar to only show what matters by setting the Channels section to only show unread channels and creating personalized sections for specific channels or teams you want to keep track of. You can also change the order that channels are listed in and tweak the color scheme of the sidebar to give it a look that's just right for your usage.