How do I force all Graphics Text to be StandardForm?

I've been playing around for while trying to determine how to get all graphic objects to use StandardForm fonts. That is, I want all axes labelling, titling, legends, inserted text, etc., for 2D/3D graphics to use StandardForm. Forever and always unless explicitly overridden.

I'm getting somewhat overwhelmed with all of the options in the Option Inspector and if anyone has a suggestion I would appreciate it.

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SetOptions[Graphics, FormatType -> StandardForm]

If you also want to get this format in text labels for Plot, you'd have to set the options for that command analogously. This isn't so obvious because the output of Plot is also of head Graphics. The FormatType specification for Graphics doesn't get applied to Plot results, however.