aheatmap() - border_color for annCol

[clayfos]

Greetings,

Just discovered aheatmap and I'm quite happy with it. However, is there currently a method of drawing a border around the outside of the entire annotation cell group only, similar to the way 'matrix' works for the surrounding matrix border for the border_color parameter in aheatmap? I'd like to have just a single solid border on the outside my annotations (also the color scale legend), rather than borders around every cell.