Why doesn't heatmap use the default font?

Hello,

I would like to change the font in the axes of my heatmap. I provide a MWE below. I would like the Y-axis and the X-axis to be of the same font as the default and I don't want to manually change that for every plot as that would kill the idea of having a default fontname.

I am using MATLAB R2016a, so inserting 'FontName','Latin Modern Roman' in the heatmap function will not work.

Thank you in advance, Olivier.

% Minimum (Non)-Working Example

Country={'Belgium','France','Germany'};
random_matrix=rand(3,3);

% Set default depending on your MATLAB version
set(0, 'DefaultAxesFontName', 'Latin Modern Roman');
set(0, 'defaultAxesFontName', 'Latin Modern Roman');

% Generate the heatmap
figure('Name','Distance Matrix');heatmap(random_matrix, Country, Country, [], ...
    'TickAngle', 45,'ShowAllTicks', true,'Colormap', 'gray','Colorbar', true,'ColorLevels',50);
title(['Distance Matrix']); % title is changed according to new default, but not the rest of the heatmap

% Option suggested in https://nl.mathworks.com/matlabcentral/answers/221149-is-it-not-possible-to-change-every-font-size-on-plots-at-the-same-time
fig = gcf;
set( findall(fig, 'property', 'FontName'), 'FontName', 'Latin Modern Roman') % Not working

[Adam]

h = heatmap( ... );

h.FontName = '...';

seems to work for me, although it seems to do some odd things to the font colour too in some cases (e.g. setting to Courier).