Default image format
Specifies the file format that is selected by default when you save a new image.
If your image contains multiple layers, the NPSD format will always be selected by default.
This is because it's the only format that supports saving multiple layers without flattening it first.
Keep a list of this many MRU (Most Recently Used) items
Specifies the maximum number of recently-opened items to show in the File menu and Open context menu on the welcome screen.
When you open more items than the limit, the oldest item is replaced.
Attempt to recover documents after NPS closes improperly
If NPS Image Editor closes improperly for any reason, it will attempt to recover unsaved data unless you disable this option.
Disabling this option can improve performance on older computers at the cost of potential data loss if you don't save regularly.
Auto-save interval (minutes)
In order to be able to recover documents, NPS Image Editor will auto-save the data to a temporary location.
Specify how many minutes pass between each auto-save.