How do I persistently highlight specific patterns with custom colors in Vim?
:call matchadd('Search', 'pattern')
The matchadd() function lets you add persistent highlights to patterns without affecting the search register.
Tag: highlighting
How do you enable syntax highlighting in Vim?
syntax on
Use syntax on in your vimrc to enable syntax highlighting for all supported file types.
How do I see all search matches highlighted as I type the pattern?
:set incsearch hlsearch
The combination of incsearch and hlsearch gives you live, interactive search highlighting.