Exporting variables converts to lowercase

How is it possible that ALL plugins available to export variables into CSS convert the name of the variables to lowercase?

You can set variables in Figma to be uppercase and when you inspect, the CSS will show the variable in uppercase:
color: var(–Patch-Reef-Blue);

But all the variables export plugins will convert this to
color: var(–patch-reef-blue);

therefore the need to manually rename… Is this me or Figma?

Thanks!