Too many things styled inline

Not too easy to learn how things work, but after a while one gets the grips. The designs are horrible, and need to test all to see what’s available. Finally settling on one of them, there’s the possibility to change things, but that interface is also cumbersome and sometimes it shows default settings though adjustments have been made. Nevertheless, very useful plugin, but the thing that breaks the deal is the amount of styling done inline, setting size on date next to the posts is for example neither possible from the settings, nor via css.
Also, the plugin uses its own fonts, looks like standard fonts in Windows, and it’s not possible to change in the settings to something more modern, like my site does (Goole fonts, for example).
Appreciate the effort, I’m no programmer, and do understand things may be hard to code, but I’ll have to try something else.