Fonts aren't loading properly
Stencil uses Google Fonts. It's possible that if fonts aren't loading properly for you, you may have an Ad Blocker turned on that is blocking fonts from Google from being imported / used in Stencil.
If you do have an Ad Blocker installed, please check it's settings to ensure it allows Google Fonts to be loaded on websites that you visit.
Stencil will look something like this if you have fonts blocked:
If you've done this, please try loading Stencil in a Private Window to determine if some other Browser Extension is preventing Stencil from loading fonts from Google.
Finally, if this doesn't resolve the issue, please contact support so we can work with you to figure out the cause and fix it.