app designer special characters

Hi, I am writing my first app designer applications, and would like to use special characters, such as Greek letters. In the title of a plot, I used the TeX notation of \xi_0 and it works just fine. However, in the label of a slider, that didn't work, and char(958), i.e. Unicode, and texlabel(...) didn't either. What can I do here?

[Sudarshan Kolar]

I understand that you want to use special characters as label for your slider in appdesigner.

In the appdesigner startupFcn, you can declare something like this:

app.SliderLabel.Text = char(958);

More information about startupFcn:

https://www.mathworks.com/help/matlab/creating_guis/app-designer-startup-function.html