Unwanted black background on a figure

Whenever I run this code, I always get a black background on a figure, but I need it to be white.

load noisdopp; x = noisdopp;

wpt = wpdec(x,3,'db1','shannon');

plot(wpt);

I have no idea why it's like this.

Answer 1

[Matt J]

I have no idea why it's like this.

That seems to be the default color scheme, judging from this doc page,

https://www.mathworks.com/help/wavelet/ug/advanced-use-of-objects.html#mw_0668a8b7-f29f-4d4e-b1e7-c3a915d575c5

You can change the axes background color to white by doing,

set(axHandle, 'Color','white')

but the yellow lettering in the left hand subplot will be difficult to read on a white background.

Answer 2

[Charles Rice]

This might be too late, but if you go to Settings>Appearance there is a "Desktop Theme" and a "Figure Theme" farther down the page.