While Paint Tool SAI is a legendary lightweight digital art program, its language settings are not entirely intuitive. Depending on which version you are using (SAI 1 or SAI 2) and where you downloaded it, changing the language can range from a simple menu click to a manual file replacement.
In Version 1, the language is primarily controlled by a specific configuration file in the application folder. DeviantArt Locate the Folder paint tool sai change language
SAI 2 handles things a bit differently and doesn't always use the same files as Version 1. The Quick Fix: While Paint Tool SAI is a legendary lightweight
: Look for a file named language.conf .