I use Inkscape to make graphics for my beamer presentations, and I use the textext extension to add math to my images.
However, the font in textext doesn't match the standard beamer font. I can use \sffamily for text and \mathsf for math (unless I need italic latin characters as variable names). But I can't find a unifying approach that also works with greek letters.
I can add commands to the TexText preamble file. I've tried adding the cmbright package, but then the greek letters come out as gibberish.
What's the best thing to do here?