I've set LimbReddening to false in the server.cs file of the zip and it's still reddening players & bots. If you don't know why I mean I'll give you a part of what I'm talking about.
// -- General Blood -----
if(checkPref($Pref::RBloodMod::MinimumBloodThreshold)) $Pref::RBloodMod::MinimumBloodThreshold = 1;
// Minimum amount of damage required for blood to appear
if(checkPref($Pref::RBloodMod::BloodFadeTime)) $Pref::RBloodMod::BloodFadeTime = 15000;
// Time blood static shapes will stick around before disappearing
if(checkPref($Pref::RBloodMod::DisableStatic)) $Pref::RBloodMod::DisableStatic = false;
// Disable/Enable static shape blood
if(checkPref($Pref::RBloodMod::DisablePuddleTrigger)) $Pref::RBloodMod::DisablePuddleTrigger = true;
// Disable/Enable spawning of triggers that add blood to player's feet when walking over blood puddles
if(checkPref($Pref::RBloodMod::UseCubeGore)) $Pref::RBloodMod::UseCubeGore = true;
// Disable/Enable cube debris based gore
if(checkPref($Pref::RBloodMod::LimbReddening)) $Pref::RBloodMod::LimbReddening = false;
// Disable/Enable player limb node reddening when exposed to blood
if(checkPref($Pref::RBloodMod::LimbReddeningFactor)) $Pref::RBloodMod::LimbReddeningFactor = 0;
// Raise this to lower the amount of reddening that occurs
if(checkPref($Pref::RBloodMod::LimbReddeningSplash)) $Pref::RBloodMod::LimbReddeningSplash = 0;
// Scale amount of limb reddening splash that occurs when someone is shot
if(checkPref($Pref::RBloodMod::BloodColor)) $Pref::RBloodMod::BloodColor = "1 0 0 1";
// Color of bloodI've increased the "LimbReddeningFactor" because it apparently lowers the reddening.