The button at the top of the Main Toolbar is a ‘Selection aware’ button.
Different settings will display depending on:
- The item you have selected, or,
- If you have no selection, then the Tool you have selected
If there is a selection - then the settings directly apply to this selection and the item is updated as you change the various properties.
If there is no current selection - then the settings update the default settings for each particular Tool and these defaults are used when new items are subsequently created.