It should be something as simple as:
Lua Code:
hooksecurefunc("DefaultCompactUnitFrameSetup", function(frame)
frame.myHealPrediction:SetTexture([[Raid-Bar-Hp-Fill.blp]])
frame.myHealPrediction:SetVertexColor(19/510, 229/510, 177/510)
frame.otherHealPrediction:SetTexture([[Raid-Bar-Hp-Fill.blp]])
frame.otherHealPrediction:SetVertexColor(32/510, 142/510, 115/510)
end)
hooksecurefunc("DefaultCompactMiniFrameSetup", function(frame)
frame.myHealPrediction:SetTexture([[Raid-Bar-Hp-Fill.blp]])
frame.myHealPrediction:SetVertexColor(19/510, 229/510, 177/510)
frame.otherHealPrediction:SetTexture([[Raid-Bar-Hp-Fill.blp]])
frame.otherHealPrediction:SetVertexColor(5/510, 5173/510, 23/510)
end)
Remove/change SetVertexColor as desired.