Quickly switch between different toolbars

When the toolbar slides into a different mode, the same toolbar button that was used to enter the new toolbar/mode can be tapped to exit that toolbar/mode. Toolbar buttons are “toggle-aware”.

For example:

Tap the sketch toolbar button to slide in the sketching toolbar. Tap the sketch button again to slide back to the main toolbar.
Tap the microphone toolbar button to begin audio recording. Tap the audio button again to stop recording.