I really liked the XView toolkit. For a while it had a second life on Linux after Sun dropped it as it later was released as open source. But it had a lot of th

I really liked the XView toolkit. For a while it had a second life on Linux after Sun dropped it as it later was released as open source. But it had a lot of things in it that assumed a 32-bit system and so basically died when everyone went to 64-bit. In theory it could be patched, but I don't think anyone cares enough about it to do that these days.