Test editor select visible layer

Use the select visible layer control to select what information is overlaid on the step image. You have the following options:

Diffs
If you select this option, then pixels where significant differences were found are colored pink.
Remarks &  Issues
Select this option to display remarks and issues added by the user.
Baseline Regions
Select this option to display match level regions added by the user.
Coded Regions
A unique ID so that the region can be compared even if the location of the region has changed.
Viewport
Select this option to add a boundary box that represents the viewport size relative to the image size (relevant when the image is large than the viewport size).