Assign SMS Tone Directly To Contact
Summary
There are now ways to set the sound played to announce an SMS message. However, this sound is the same for all SMS messages. The ability to set ring tones specific to a Contact exists; I would like to see the abilty to set the SMS sound played for a Contact as well.
To assign an SMS tone directly to a specific contact, see sconix's Patch:AdvancedSystemPrefs
Credit
VictorPerry - Patch Idea