When comparing Blackbox vs QTerminal, the Slant community recommends QTerminal for most people. In the question“What are the best terminal emulators for UNIX-like systems?” QTerminal is ranked 20th while Blackbox is ranked 34th. The most important reason people chose QTerminal is:
QTerminal support font ligatures found in fonts like FiraCode.
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Pros
Pro Font ligatures
QTerminal support font ligatures found in fonts like FiraCode.
Pro Lightweight
Compared to many terminal emulators, QTerminal is lightweight with fewer dependencies than most.
Cons
Con If you like fancy bells and whistles you will not like the simplicity of blackbox.
You will not like blackbox if you can't use a text editor to make a changes to your desktop or customized application menu.
Con Window resize
Resizing the window does not resize the contents, like rxvt-unicode does.
Con Strange default paste action
When pasting into QTerminal, one has to be careful as it assumes immediate execution.