I used Imagine by Logotron (Czech-localized, including keywords - yes, with diacritics) as my IDE, and I still have it installed because the accompanying graphics editor (LogoMotion) is just so good. I never got to the OOP part because the textbook didn't cover it and there are no materials onlone about the Czech version (not even a keyword dictionary), and I couldn't speak English back then. I stopped programming for way too long because I couldn't get another IDE working and I didn't know how to make arrays and text I/O in Logo, the tutorials I had stopped at variables.