There are several User Manual pages with configuration barcodes related to scanning inverse/negative barcodes for the WDI4500 scanner:
1D barcodes: Page 5-59 (PDF page 129)
Data Matrix: Page 5-74 (PDF page 144)
QR Code: Page 5-77 (PDF page 147)
Aztec: Page 5-79 (PDF page 149)