How can I save a figure to jpg and keep the legend background 'black'?

My goal is to save a figure with a legend with a BLACK background and white text in jpg format.

The open figure and even the saved figure (as '.fig') and even saving the figure manually to another file format result in what I need (black legend background with white text).

Only when I try to automatically save in other file formats using saveas() with the formats 'jpg','tif','png' the figure is always saved with a WHITE legend background.

For an image displayed in a figure I tried:

          iAmLegend = legend({'\color{black} myTitle'},'FontSize',30); % set legend text white
          set(iAmLegend,'color','k'); % set legend background black

          output_FileName = strcat(myCurrentWorkingDir, '/', 'myFileName.tif'); % set file path to save to
          saveas(figureHandle, output_FileName,'tif'); % does not save BLACK legend background

I am grateful for any advice! Thank you!

[dpb]

See the notes on background colors and preserving... preserving background color

[Konstantin Sieler]

thanks a lot this solved my problem!!!

[hooman arad]

check this

https://de.mathworks.com/matlabcentral/answers/425874-how-can-i-save-a-figure-to-jpg-and-keep-the-legend-background-black