Variables view displays information about the variables in a selected stack frame. When an execution stops, the changed values are highlighted in red (by default). Like the other debug-related views, Variables view does not keep up with the execution of a running program; it updates only when execution stops.
To set whether or not a variable type is displayed
You can customize the look of Variables view and set the color of changed variables (red by default).
To access Variables view preferences
During a debug, you can change the value of a variable to test how your program handles the setting or to speed through a loop.
To change a variable value while debugging