My Welcome screen is corrupted

koogs

The fix is here: https://github.com/processing/processing/issues/4747

It's because of a font clash between Source Sans and Source Sans Pro. the workaround is to delete Source Sans Pro.

some code to check if you have the suspect font installed:

import java.awt.Font;

Font f1 = new Font("Source Sans Pro", Font.PLAIN, 12);
Font f2 = new Font("Source Sans Pro Semibold", Font.PLAIN, 12);

println(f1.getPSName() + " ... " + f2.getPSName());

When the font is installed, it'll print SourceSansPro-Regular ... SourceSansPro-Semibold. When not installed, it'll print Dialog.plain ... Dialog.plain.