HowTo Install LUA-Syntaxscheme for the Proton Editor

*Assumed that Proton is installed in directory <PROTON>:

Copy the file LUA.SCH to the the <PROTON>/SYNTAXSCHEMES/ subdirectory. 

To automate syntaxhighlighting for .LUA-files add the following line to the EXTENSIONS.INI in the same directory:
lua=LUA