i have downloaded TextMate in QuickLook plugin I displays, for example .sh, .h files, but .txt, .cpp and others - does't How can i tweak it ? I really like "Pastels on Dark" Theme and want to display with it all the "textual" files of all types :)
Select one file with the extension you want (for example .sh).
Do "Get Info" in Finder.
Then setup Finder to 'Open with' all files with this extension with TextMate.