Maybe the below external tool might help you a little bit?

The latest build allows to open/edit files (depending on the platform).

In the next 22.1 preview build, please set spellchecker.checkWordAtCaret to true. I've verified with LibreOffice, that also does not check the word at the caret, even not after a short time.

Sure, this is possible, but this information is not available locally.

Please explain how this should be done on plain Git level. Note, that Git does not have any remote information stored with tags.

... aAnd now also if you have the repository initialized outside SmartGit and do the first commit.

It depends on what state the file has and what kind of view options of the Files table are selected.

Please try changing the low-level property branch.replaceInvalidCharsWith.

SmartGit just uses the system font. Is the font large enough for you in other applications, e.g. Windows Explorer?