Heatmap cluster separation lines[Feature]

[monikaramos]

Hi there,

Great package, I really appreciate the development of this tool for better visualization and figure building of scRNAseq data.

Is there a way to add vertical lines that separate clusters in the heatmap? Currently, they all blend together and the annotation bars are the only divider, I am wondering if this can be extended throughout the heatmap?

See images below for an example provided by seurat heatmap with vertical line divider versus scillus heatmap. thanks!