Tonight I took up as a challenge to create a language file for Notepad++ designed to highlight Counter-Strike Global Offensive configuration files (.cfg files). It becomes pretty handy to see syntax error and if keywords are correctly spelled to avoid further problems.
It took me half an hour to do so, based on the works of @gustavnikolaj, he posted on Reddit his works for SublimeText 2. I took his work, especially lists of keywords and a similar color scheme, to achieve mine.
You can see below the result of my work, how it highlights text and values in Notepad++
If you want to download that language file : GOTO my GitHub CSGO repo