You can customize the name of the source, display it on the output screen and change the opacity values. The Show Name and Opacity settings can be adjusted from the global settings for all sources, as well as individually for each source.
\uD83D\uDCD8 Show name on preview and Opacity settings:
Go to Options menu.
Switch to Customize tab.
Enable “Show Name On Preview” checkbox.
You can increase or decrease the opacity values by dragging the slider to the right or left. (The default opacity value is %50 percent.)
The changes you have made will become active in the output screen when you click the Apply button.
You can change the names of the sources anytime by hovering over them in the Source menu.