I've looked at it, specifically the FileZilla Sourceforge installer.

The two buttons are equal, i.e. the Accept button is not flagged as "the default button" the way it's usually done in Windows.

The installer is just programmed this way: you click space/enter, and the offer is accepted.

The best thing Unchecky can do here is warn on an Enter/Space click, but that's harder to maintain between various installers than mouse clicks.

So for now, I'm not going to do anything about it.

You can look at it this way: if you're using your mouse, Unchecky warns you. If you're using the keyboard, Unchecky assumes you know what you're doing.

Support for the new Java offer was added in v0.4.2.