- Go to \steamapps\workshop\content\108600\2521330369\mods\Subpar-Survivors\media\lua\client\2_Other
- Open the file SuperSurvivor.lua
- Go to lines 1463 + 1464 in Notepad++ (or similar) or simply search for function
SuperSurvivor:setHostile(toValue)
in your preferred text editor
- Replace the numbers at the end of
self.userName:setDefaultColors
to look like this:
self.userName:setDefaultColors(255,255, 255, 255);
- Replace the numbers at the end of
self.userName:setOutlineColors
to look like this:
self.userName:setOutlineColors(0,0, 0,255);

And you are finished!

From now on (including existing saves), any hostile survivors will have the default white names above their head. I think this is more immersive and natural; you never know who could be a threat or what their intentions are, whereas if you see a red-named survivor you immediately know they are guaranteed to be hostile.
Combined with the right "Chance to be hostile" and spawn settings, I believe this could lead to some very emergent moments of gameplay!

Perhaps you have a horde on your tail... you spot a survivor in the distance; maybe they will happily join you and help fight back the zeds? If it comes to it, they could at least serve as a distraction, a human shield to help you escape the incoming undead... Or maybe, upon spotting you in your predicament (and noting your armour, backpack and other valuable supplies), they will simply watch as you approach them in desperation, only to gun you down the moment you step into range...

If anyone else ever wanted to try something like this, or are intrigued at the concept and plan to try it out, then I hope you have fun!