Building off of
this thread, I decided to make a mod that translates all Lissit text in the campaign. Translated text is demarcated by curly brackets {}.
English sprinkled with Lissit words is kept unchanged (since they're usually obvious from context anyway). And don't worry, I didn't try to localize Silithis' name as "Patience" this time. :p I did take one liberty, which is that I assumed that every cutscene where the lissit talk among themselves is actually in Lissit and translated into English for our benefit; thus, I bracketed those entire conversations, and translated any sprinkled Lissit.
Feedback is appreciated.