Stick and Trigger zones
reWASD differentiates four zones for analog controls: Deadzone, Low, Medium and High zones. Part of the functionality is available with Basic license or with its 7-day trial, and the other part is available with a purchased Advanced Mapping feature, or its trial.
Deadzone — grey-colored zone — is a zone of analog control, where nothing happens. This can be helpful, if your analog controls are too tight (lessen the deadzone to make the control more responsive) or if the control is too sensitive (make the deadzone bigger to avoid the accidental actions).
Affect gamepad behavior for games permits applying the chosen deadzone for the stick used as a stick (or trigger used as a trigger), and doesn't affect any other mappings.
Low (green-colored), Medium (yellow-colored), High (red-colored) zones are just conditional zones, where you can assign mappings. When you don't have any mappings assigned to Stick or Trigger zones, the colored zones have no effect on your controller. It's not in the code.
Stick Zones settings
Zone Shape — choose the shape for Stick zones, it can be Radial or Elliptic. You can tune all three zones with the sliders of corresponding colors below.
Note, that when changing the Deadzone with Affect gamepad behavior for games setting active, you can only use the Radial zone shape. Elliptic zone shape works only with keyboard mappings added to the stick.
You can add mappings to Stick zones for different directions. Choose the needed Direction (All, Left, Right, Up, Down options are available), then pick the Zone and add a mapping, combo or rumble To it. The mappings will be shown on the image with Stick zones.
Trigger Zones settings
Trigger Zones settings permit to change Low, Medium and High zones range, and set mappings to ones. Since reWASD 5.8, you can modify the shape of each zone separately.
After you are done, click Back on the top of the left list of settings to return to the main view.