getCmapString

% str = getCmapString(h) finds what colormap is used in the handle h
% and returns as a string. Matlab has 18 colormaps:
% parula (default)
% jet
% hsv
% hot
% cool
% spring
% summer
% autumn
% winter
% gray
% bone
% copper
% pink
% lines
% colorcube
% prism
% flag
% white
% If no matches are found, "unknown" is returned.
%
% h should be a handle of which the class has a Colormap property.