diff --git a/ui_config.lua b/ui_config.lua
index cf246d1..f248c4b 100644
--- a/ui_config.lua
+++ b/ui_config.lua
@@ -8,15 +8,14 @@ AA.ApplyConfig = function()
   AA.M:SetScale(AA.db.scale or 1)
   AA.M:SetAlpha(1)
   AA.ApplyOpacity(AA.db.alpha or 1)
-  local cr, cg, cb = AA.BgColor()
-  AA.f:SetBackdropColor(cr or 0, cg or 0, cb or 0, AA.db.cdalpha or 1)
+  AA.SetSkinAlpha(AA.f, AA.db.cdalpha or 1)
   if AA.UpdateSwatch then AA.UpdateSwatch() end
   AA.Layout()
 end
 
 local cfg = CreateFrame("Frame", "AdeAltsConfig", UIParent)
 cfg:SetWidth(280)
-cfg:SetHeight(404)
+cfg:SetHeight(444)
 cfg:SetPoint("CENTER", UIParent, "CENTER", 0, 0)
 cfg:SetFrameStrata("DIALOG")
 cfg:SetMovable(true)
@@ -25,7 +24,7 @@ cfg:RegisterForDrag("LeftButton")
 cfg:SetScript("OnDragStart", function() this:StartMoving() end)
 cfg:SetScript("OnDragStop", function() this:StopMovingOrSizing() end)
 cfg:Hide()
-AA.SkinFrame(cfg, 0.97, true)
+AA.SkinFrame(cfg, 0.97, true, true)
 table.insert(UISpecialFrames, "AdeAltsConfig")
 
 local ctitle = cfg:CreateFontString(nil, "OVERLAY", "GameFontNormal")
@@ -123,8 +122,35 @@ swatch:SetScript("OnClick", function()
   ColorPickerFrame:Show()
 end)
 
+-- window style: Auto (pfUI when installed) / Blizzard / pfUI
+local stylabel = cfg:CreateFontString(nil, "OVERLAY", "GameFontNormal")
+stylabel:SetPoint("TOPLEFT", cfg, "TOPLEFT", 20, -344)
+stylabel:SetText("Window style")
+local stybtn = CreateFrame("Button", nil, cfg, "UIPanelButtonTemplate")
+stybtn:SetWidth(100)
+stybtn:SetHeight(22)
+stybtn:SetPoint("TOPRIGHT", cfg, "TOPRIGHT", -20, -340)
+local stynote = cfg:CreateFontString(nil, "OVERLAY", "GameFontDisableSmall")
+stynote:SetPoint("TOPLEFT", cfg, "TOPLEFT", 20, -368)
+stynote:SetWidth(240)
+stynote:SetJustifyH("LEFT")
+stynote:SetText("Auto: pfUI look if pfUI is installed, classic Blizzard look otherwise.")
+
+AA.UpdateStyleBtn = function()
+  local st = AA.db and AA.db.style
+  stybtn:SetText((st == "blizz" and "Blizzard") or (st == "pfui" and "pfUI") or "Auto")
+end
+stybtn:SetScript("OnClick", function()
+  if not AA.db then return end
+  local st = AA.db.style
+  if st == nil then AA.db.style = "blizz" elseif st == "blizz" then AA.db.style = "pfui" else AA.db.style = nil end
+  AA.ApplyStyle()
+  AA.UpdateStyleBtn()
+end)
+
 local function LoadConfigUI()
   AA.UpdateSwatch()
+  AA.UpdateStyleBtn()
   cfg.loading = true
   for _, sl in ipairs(sliders) do
     local v = (AA.db and AA.db[sl.field]) or sl.default
@@ -143,6 +169,8 @@ creset:SetText("Reset")
 creset:SetScript("OnClick", function()
   for _, sl in ipairs(sliders) do AA.db[sl.field] = sl.default end
   AA.db.bg = nil
+  AA.db.style = nil
+  AA.ApplyStyle()
   AA.ApplyConfig()
   LoadConfigUI()
 end)