I read a lot of posts about semantic highlighting in Code::blocks. I saw some people made plugins of semantic highlighting. But my question is, "how to get/download/install those plugins?"
Where do you read these? As far as I know neither scintilla, nor C::B support semantic highlighting.
There is one fake thing, which changes the highlighting of class members, but it is in the core and it is probably enabled by default...
https://forums.next.codeblocks.org/index.php?topic=16249.0 (https://forums.next.codeblocks.org/index.php?topic=16249.0)
https://wiki.codeblocks.org/index.php/Developer_documentation (https://wiki.codeblocks.org/index.php/Developer_documentation)
Those posts were very old; but, build Code::Blocks (CB) from Source and you can try those patch files and likely find out they no longer apply.
Tim S.