Can I add stroke to the texts?
If you want to add stroke to your texts, meaning something like this, then you should go into the font manager:
and there you could enter a stroke css code to the "Extra CSS" option, like this one:
color: white; text-shadow: -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000, 1px 1px 0 #000;
And that would create this effect on your text: