Bonus
Bonus features, easter eggs, experimental features, legacy debug widgets, and more!
The Widget Palette
Press Command/Ctrl+Shift+W to open the Widget Palette. It was the foundation of the Find&Replace dialog you see right now. It is kept because it… looks nice!
The Sidebar
Quite a hidden feature, there is no prominent button in the UI for toggling it on. You can toggle it by pressing Command/Ctrl+B or selecting a command in the command palette. It just shows the current project/directory, which is another experimental feature.