[NTG-context] Notepad++ colour settings

I have downloaded the latest Notepad++ and ConTeXt settings as suggested by Professor Hamid and I'm enjoying the experience of using them! However, I do not really like the colour scheme and tried to alter the background colours by editing "Application Data/Notepad++/UserDefineLang.xml", shutting down Notepad++ and starting up again (via Npp.bat), but no change. I also tried editing the "tex" entry in "Application Data/Notepad++/stylers.xml", but no joy. I tried going to menu item Settings - Style Configurator, but Context isn't in the list of languages. How can I alter the default colour settings for ConTeXt, please? Richard Stephens