k- in the Borders function written by Chad Greene

In ths borders function written by Chad Greene, k stands for Black color.

I What does "k-" stand for in the following command?

borders('countries','k-','nomappingtoolbox')

I found this command while referring to a function binind2latlon

Awaiting your response.

Thank you.

Answer 1

[Stephen23]

https://www.mathworks.com/help/matlab/ref/linespec.html

'k' black color

'-' continuous line (i.e. not dots or dashes)