Some preview images are not representative of the theme

[tritium21]

The preview image below is rendered incorrectly, compared to how it actually renders.

This is how it renders in Firefox (probably correct.)

[ralsina]

Well, that depends on what fonts you have in the system, doesn't it?

[Kwpolska]

This is caused by PhantomJS being terribly outdated. We could fix it with headless Chrome and Puppeteer for example.

[tritium21]

I was more concerned with phantomjs apparently choosing to render text in arbitrarily wrong locations

[Kwpolska]

Well, that’s what I’m talking about: PhantomJS’s engine is outdated and isn’t as good at new CSS tricks as Chrome/Firefox. Font faces chosen is irrelevant.

[Kwpolska]

Fixed in commit be97dd1 by using Puppeteer. Needs one-time config and a Chrome/ium install, comes with much more accurate screenshots.