I know that I can use UserInfo.getUiThemeDisplayed() to get the current theme displayed to the user. This works in lightning and classic. However when I am in mobile mode, I just get "Theme4t" (as stated in the documentation.)
Theme4t— Salesforce mobile app theme.
This doesn't give me any information about the type of theme displayed to the current user. How can I get the theme even if I am in mobile mode? (either classic or lightning theme)