weird function. i never used it before. but setting the Figure color before plotting with the smithplot seems to use the background color of the figure. when using smithplot before setting the color, the background cannot be adjusted anymore
fig = figure;
fig.Color = 'r'; % Change 'r' to your desired color
% Create a Smith chart
s = smithplot(rand(1,10));
fig = figure;
% Create a Smith chart
s = smithplot(rand(1,10));
fig.Color = 'r'; % Change 'r' to your desired color
