Hi bdbrown, thank you for your answer.
The problem is that I am using translated .po file. In my case it is “sk_SK.po“. It does not work. I put this file inside “language” directory of the theme and child theme too, but I can’t find how to force Hueman theme to use this language file. This part of Hueman documentation does not help.
Anyway, if I change string directly within .php files, e.g. in “page-title.php”, on line 47 from “Monthly Archive:” to “Mesa?ny archív:”, I can see change on my website immediately.
