Add hc.rect.col to set the cluster-rectangle outline color#97
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The hc.rect cluster rectangles were drawn with a hardcoded gray30 outline. Add an hc.rect.col argument (default "gray30", so existing output is byte-identical) so the outline color can be chosen, e.g. hc.rect.col = "white" or "black" to suit the palette. Only used when hc.rect is set.
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The
hc.rectcluster rectangles were drawn with a hardcodedgray30outline, so there was no way to recolor them short of adding your ownannotate("rect", ...)(which means recomputing the cluster bounds by hand).New
hc.rect.colargument sets that outline color:"gray30"— every existing call is byte-identical (64/64 combinations verified vsorigin/master); an explicithc.rect.col = "gray30"reproduces the previous output exactly.hc.rectis not set (no rectangle layer).R CMD check --as-cranclean.Requested by the maintainer for cluster-box readability.