Zooming in and out a Project Plan
You can zoom in or out of your Project Plan if you need to see it in more detail or simply want to maximize/minimize the tab.
On Casual, there are three zoom levels. By default, everything is presented with maximum zoom, and you have two steps zoom out. Find the control to zoom out at the right bottom of the canvas. You also can hold Ctrl/Cmd and move your cursor.
Use your browser’s zoom functions — pressing Ctrl/Cmd and ‘+’ and ‘-‘ — if you need to zoom in.