You need to edit \AddOns\PitBull4\ModuleHandling\TextProviderModule.lua at around line 107 so it looks like this:
Code:
font_string = PitBull4.Controls.MakeFontString(frame.overlay, "OVERLAY")
texts[name] = font_string
frame[self.id .. ";" .. name] = font_string
font_string:SetShadowColor(0, 0)
font_string:SetShadowOffset(0, 0)
font_string:SetNonSpaceWrap(false)
font_string:SetFont(font, size, "MONOCHROMEOUTLINE")
changed = true
else
local _, _, modifier = font_string:GetFont()
font_string:SetShadowColor(0, 0)
font_string:SetShadowOffset(0, 0)
font_string:SetNonSpaceWrap(false)
font_string:SetFont(font, size, "MONOCHROMEOUTLINE")