Apply rebased PR #60 (AD tint OOR fade) and add state.healthbar* tracking

PR #60 conflicted with PR #62 on the replace-mode hbTex:SetVertexColor block; applied
only the non-duplicate parts manually. The state.healthbarMode/R/G/B/Blend writes also
fix a latent bug in already-merged PR #62 where adHealthBarMode was read but never
written, making the live tint/replace switch gate always fail.

Author: DanderBot

AuraDesigner/Indicators.lua

@@ -1033,9 +1033,17 @@ function Indicators:ApplyHealthBar(frame, config, auraData)
 
     local r, g, b = color[1] or color.r or 1, color[2] or color.g or 1, color[3] or color.b or 1
     local mode = string.lower(config.mode or "replace")
-    -- Both modes use the overlay — replace forces full opacity, tint uses blend slider
+    -- Replace: full opacity overlay; Tint: blend slider controls mix strength
     local blend = (mode == "replace") and 1 or (config.blend or 0.5)
 
+    -- Store on state so UpdateAuraDesignerAppearance / UpdateHealthBarAppearance
+    -- can access these for OOR handling and the replace/tint mode gate.
+    state.healthbarMode  = mode
+    state.healthbarR     = r
+    state.healthbarG     = g
+    state.healthbarB     = b
+    state.healthbarBlend = blend
+
     local overlay = GetOrCreateTintOverlay(frame)
     if overlay then
         -- Re-sync texture in case the health bar's texture changed since the overlay

Features/ElementAppearance.lua

@@ -1093,6 +1093,27 @@ function DF:UpdateAuraDesignerAppearance(frame)
                 end
             end
         end
+        -- Tint overlay (health bar "show when missing" indicator)
+        -- Control opacity via SetStatusBarColor rather than SetAlpha.
+        -- SetAlpha compounds with the blend baked into SetStatusBarColor:
+        -- blend × oorAlpha = e.g. 0.5 × 0.2 = 0.1 (nearly invisible OOR).
+        -- Setting SetStatusBarColor directly gives the exact target opacity.
+        local tintOverlay = frame.dfAD and frame.dfAD.tintOverlay
+        if tintOverlay and tintOverlay:IsShown() then
+            local adState = frame.dfAD
+            local r, g, b = adState.healthbarR or 1, adState.healthbarG or 1, adState.healthbarB or 1
+            local blend   = adState.healthbarBlend or 0.5
+
+            if issecretvalue and issecretvalue(inRange) then
+                -- Secret boolean fallback — can't branch; leave at configured blend.
+                tintOverlay:SetStatusBarColor(r, g, b, blend)
+            elseif inRange then
+                tintOverlay:SetStatusBarColor(r, g, b, blend)
+            else
+                tintOverlay:SetStatusBarColor(r, g, b, oorAlpha)
+            end
+            tintOverlay:SetAlpha(1.0)
+        end
     else
         -- Frame-level mode: restore each indicator's base alpha
         if frame.dfAD_icons then
@@ -1110,6 +1131,17 @@ function DF:UpdateAuraDesignerAppearance(frame)
                 if bar then bar:SetAlpha(bar.dfBaseAlpha or 1.0) end
             end
         end
+        -- Tint overlay (health bar "show when missing" indicator)
+        -- Frame-level mode: the frame cascade handles OOR alpha. Restore the overlay's
+        -- own alpha and SetStatusBarColor to their configured values.
+        local tintOverlay = frame.dfAD and frame.dfAD.tintOverlay
+        if tintOverlay and tintOverlay:IsShown() then
+            local adState = frame.dfAD
+            local r, g, b = adState.healthbarR or 1, adState.healthbarG or 1, adState.healthbarB or 1
+            local blend   = adState.healthbarBlend or 0.5
+            tintOverlay:SetStatusBarColor(r, g, b, blend)
+            tintOverlay:SetAlpha(1.0)
+        end
     end
 end