Details for overlay "col" option lacking

[gdevenyi]

Documentation for overlay says:

col | The colour scale. See defaultCol for default.

But defaultCol doesn't seem to be exported such that I can read any docs.

[gdevenyi]

Is a small wrapper around colorRampPalette

MRIcrotome/R/gridImage.R

Lines 107 to 113 in ce01c93

	defaultCol <- function() {
	getOption("MRIcrotomeCol", colorRampPalette(c("red", "yellow"))(255))
	}
	defaultRCol <- function() {
	getOption("MRIcrotomeRcol", colorRampPalette(c("blue", "turquoise1"))(255))
	}