I've already tried the answers from here and here and neither fixed my problem.
In Notepad++ using the Obsidian theme, the syntax highlighting for JSON files disappears; everything is white on black. I could go through and change them manually, but instead I would rather just use the JavaScript style instead (which does work).
I can do this with Language --> JavaScript, but if I close the file and reopen it doesn't stick.
When I try the solutions tagged above it does not work for me because JSON already has an entry and it is using the default JSON style instead of the JavaScript style. I want to override the existing style and use the JavaScript style instead.
