Represents the "IC" entry of the redaction annotation object.

It is an optional entry defined as part of the PDF 1.0 specification.

It contains an array which contains doubles, representing PDF numeric objects.

Items in this array should have a minimum value of 0 and a maximum of 1.

For definitive details see:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 192, page 413.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 195, page 501.

The interior colour fills the redacted area in the annotation appearance both during review and after content has been removed.