[Vrul]

Give this a try:

hooksecurefunc("DefaultCompactUnitFrameSetup", function(self)
	local statusText = self.statusText
	statusText:SetFont("Fonts\\ARIALN.TTF", 16)
	statusText:SetShadowColor(0, 0, 0, 1)
	statusText:SetShadowOffset(1, -1)
end)

hooksecurefunc("CompactUnitFrame_UpdateStatusText", function(self)
	local statusText = self.statusText
	if statusText and statusText:IsShown() then
		if self.optionTable.healthText == "losthealth" and tonumber(statusText:GetText() or "") then
			if not statusText.colorOverridden then
				statusText.colorOverridden = true
				statusText:SetTextColor(0.95, 0.1, 0.1, 1)
			end
		elseif statusText.colorOverridden then
			statusText.colorOverridden = nil
			statusText:SetTextColor(0.5, 0.5, 0.5, 1)
		end
	end
end)