Where are the default font settings for sgtitle?

I'm trying to set default values to apply to number of plots, like this

        set(groot,'DefaultAxesFontSize', 20);
        set(groot,'DefaultAxesFontWeight', 'bold');
        set(groot, 'DefaultLineLineWidth', 1);
        set(groot, 'DefaultAxesLineWidth', 2);
        set(groot,'DefaultLineMarkerSize', 8);

This works on eveything except the grid title created using sgtitle.

Are the defaults for sgtitle set somewhere else?

Answer 1

[Adam Danz]

sgtitle doesn't appear to use the default fontsize properties I tested: DefaultAxesFontSize, DefaultTextFontSize, DefaultUicontrolFontSize, DefaultUipanelFontSize (the last two were a long shot).

Axes lables and titles use a default multiplier applied to the default fontsize but the subplottext object created by sgtitle is a child to the figure, not the subplot axes. The method matlab.graphics.illustration.subplot.Text() is used to generate the subplottext object but I can't dig any deeper to determine what defines the default values.

To work around this, you can set the fontsize after generating the titles.

% Scale the sgtitle fontsize to equal the subplot title fontsize
sg = sgtitle('SuperTitle');
sg.FontSize = get(groot, 'DefaultAxesFontSize') * get(groot, 'factoryAxesTitleFontSizeMultiplier');