Can you please explain what you mean exactly? Syntax Highlighting is built in. You can copy TextMate bundles even when you have a Windows PC - you don't need TextMate or a Mac.
There are 163 TextMate repositories at https://github.com/textmate - and many more can be found by searching for something like "language textmate bundle" or "language tmbundle".
Ideas
Can you please explain what you mean exactly? Syntax Highlighting is built in. You can copy TextMate bundles even when you have a Windows PC - you don't need TextMate or a Mac.
There are 163 TextMate repositories at https://github.com/textmate - and many more can be found by searching for something like "language textmate bundle" or "language tmbundle".