IntelliJ IDEA additional highlight plugin development?

Question

Java

I dug into the plugins and did not find a suitable implementation of additional syntax highlighting with the source code.
The task is to set the syntax highlighting of the lines of the following lex:

STRING_SINGLE_LINE=             '([^'\n]|'')*'
STRING=                         '([^']|'')*'

that is, by default "in double quotes one highlight", with 'single another'
I screwed the plugin settings, but I can't figure out how to fasten the lex and how to return the SyntaxHighlighterFactory implementation.
Does anyone have similar implementations to implement on a live example?