I prefer a “dark mode” for several apps. I could list at least 8. mSecure is one of them. Unfortunately, Apple doesn’t allow this setting at the app level: it is up to the app developer to provide it. I tend, system-wide, to operate in “light” mode, as some apps (such as Maps) offer a crutty display in dark mode. I would consider it a true courtesy and kindness were mSecure to follow the lead of several other apps in offering “dark appearance” in its user preferences,