The problem is when I append this code, as the answer suggests, to my
(add-to-list 'org-emphasis-alist '("*" (:foreground "red")))
When I restart Emacs, I get this error:
Warning (initialization): An error occurred while loading ‘c:/Users/username/.emacs’:
Symbol's value as variable is void: org-emphasis-alist
To ensure normal operation, you should investigate and remove the cause of the error in your initialization file. Start Emacs with the ‘--debug-init’ option to view a complete error backtrace.