diff --git a/skins/blizzard/arena_registrar.lua b/skins/blizzard/arena_registrar.lua
index 39e9e57e..0dc6f699 100644
--- a/skins/blizzard/arena_registrar.lua
+++ b/skins/blizzard/arena_registrar.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Arena Registrar", "tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   do -- ArenaRegistrarFrame
     StripTextures(ArenaRegistrarFrame)
diff --git a/skins/blizzard/auction.lua b/skins/blizzard/auction.lua
index b28c0aa8..979ae4a4 100644
--- a/skins/blizzard/auction.lua
+++ b/skins/blizzard/auction.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Auctionhouse", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
   HookAddonOrVariable("Blizzard_AuctionUI", function()
     -- Compatibility
     if BrowseResetButton then -- tbc
diff --git a/skins/blizzard/battlefield.lua b/skins/blizzard/battlefield.lua
index a53258a5..7ff50008 100644
--- a/skins/blizzard/battlefield.lua
+++ b/skins/blizzard/battlefield.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Battlefield", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   StripTextures(BattlefieldFrame)
   CreateBackdrop(BattlefieldFrame, nil, nil, .75)
@@ -31,7 +31,7 @@ pfUI:RegisterSkin("Battlefield", "vanilla:tbc", function ()
   BattlefieldFrame.tex2:SetHeight(240)
 
   BattlefieldListScrollFrame.maxsize = CreateFrame("Frame", "BattlefieldListScrollFrameMaxSize", BattlefieldFrame)
-  local offset = 2*(tonumber(pfUI_config.appearance.border.default) + 1) + BattlefieldListScrollFrameScrollBar:GetWidth()
+  local offset = 2*(border + GetPerfectPixel()) + BattlefieldListScrollFrameScrollBar:GetWidth()
   BattlefieldListScrollFrame.maxsize:SetPoint("TOPLEFT", BattlefieldListScrollFrame, "TOPLEFT", 0, 0)
   BattlefieldListScrollFrame.maxsize:SetPoint("BOTTOMRIGHT", BattlefieldListScrollFrame, "BOTTOMRIGHT", offset, 0)
   CreateBackdrop(BattlefieldListScrollFrame.maxsize, nil, nil, .7)
diff --git a/skins/blizzard/battlefield_minimap.lua b/skins/blizzard/battlefield_minimap.lua
index 2fe424c2..44967b5a 100644
--- a/skins/blizzard/battlefield_minimap.lua
+++ b/skins/blizzard/battlefield_minimap.lua
@@ -1,5 +1,5 @@
 pfUI:RegisterSkin("Battlefield Minimap", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
+  local rawborder, border = GetBorderSize()
 
   HookAddonOrVariable("Blizzard_BattlefieldMinimap", function()
     StripTextures(BattlefieldMinimap)
diff --git a/skins/blizzard/battlefield_score.lua b/skins/blizzard/battlefield_score.lua
index 28f681e4..922909b2 100644
--- a/skins/blizzard/battlefield_score.lua
+++ b/skins/blizzard/battlefield_score.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Battlefield Score", "vanilla", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   StripTextures(WorldStateScoreFrame)
   CreateBackdrop(WorldStateScoreFrame, nil, nil, .75)
diff --git a/skins/blizzard/character.lua b/skins/blizzard/character.lua
index 0920c173..9dd90981 100644
--- a/skins/blizzard/character.lua
+++ b/skins/blizzard/character.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Character", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   -- Compatibility
   if PlayerTitleDropDown then -- tbc, wotlk
diff --git a/skins/blizzard/dressup.lua b/skins/blizzard/dressup.lua
index 6194df40..d618a36c 100644
--- a/skins/blizzard/dressup.lua
+++ b/skins/blizzard/dressup.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Dress Up Frame", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   StripTextures(DressUpFrame, nil, "ARTWORK")
   CreateBackdrop(DressUpFrame, nil, nil, .75)
diff --git a/skins/blizzard/friends.lua b/skins/blizzard/friends.lua
index 22b6b6c1..52591c8d 100644
--- a/skins/blizzard/friends.lua
+++ b/skins/blizzard/friends.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Friends", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
   local maxtab = pfUI.expansion == "vanilla" and 4 or 5
 
   StripTextures(FriendsFrame, true)
diff --git a/skins/blizzard/guildbank.lua b/skins/blizzard/guildbank.lua
index d428fb3c..c33d37b4 100644
--- a/skins/blizzard/guildbank.lua
+++ b/skins/blizzard/guildbank.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Guild Bank", "tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   HookAddonOrVariable("Blizzard_GuildBankUI", function()
     do -- GuildBankFrame
diff --git a/skins/blizzard/help.lua b/skins/blizzard/help.lua
index c96bb313..b47060b7 100644
--- a/skins/blizzard/help.lua
+++ b/skins/blizzard/help.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Help", "vanilla", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   StripTextures(HelpFrame)
   CreateBackdrop(HelpFrame, nil, nil, .75)
diff --git a/skins/blizzard/inspect.lua b/skins/blizzard/inspect.lua
index b93fe2b0..b19abbd2 100644
--- a/skins/blizzard/inspect.lua
+++ b/skins/blizzard/inspect.lua
@@ -21,8 +21,8 @@ local slots = {
 }
 
 pfUI:RegisterSkin("Inspect", "tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   HookAddonOrVariable("Blizzard_InspectUI", function()
     CreateBackdrop(InspectFrame, nil, nil, .75)
@@ -126,8 +126,8 @@ pfUI:RegisterSkin("Inspect", "tbc", function ()
 end)
 
 pfUI:RegisterSkin("Inspect", "vanilla", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   HookAddonOrVariable("Blizzard_InspectUI", function()
     local cache = {}
diff --git a/skins/blizzard/keybindings.lua b/skins/blizzard/keybindings.lua
index 462f97a6..049aac20 100644
--- a/skins/blizzard/keybindings.lua
+++ b/skins/blizzard/keybindings.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("KeyBindings", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   HookAddonOrVariable("Blizzard_BindingUI", function()
     StripTextures(KeyBindingFrame)
diff --git a/skins/blizzard/lfg.lua b/skins/blizzard/lfg.lua
index 7ced0a66..f6cdadbc 100644
--- a/skins/blizzard/lfg.lua
+++ b/skins/blizzard/lfg.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Looking for group", "tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   CreateBackdrop(LFGParentFrame, nil, nil, .75)
   CreateBackdropShadow(LFGParentFrame)
diff --git a/skins/blizzard/macro.lua b/skins/blizzard/macro.lua
index a2d91fc9..890ad6bc 100644
--- a/skins/blizzard/macro.lua
+++ b/skins/blizzard/macro.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Macro", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   HookAddonOrVariable("Blizzard_MacroUI", function()
     StripTextures(MacroFrame)
diff --git a/skins/blizzard/mail.lua b/skins/blizzard/mail.lua
index 8b740857..6db3d252 100644
--- a/skins/blizzard/mail.lua
+++ b/skins/blizzard/mail.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Mailbox", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   -- Compatibility
   local StationeryBackgroundLeft, StationeryBackgroundRight
diff --git a/skins/blizzard/merchant.lua b/skins/blizzard/merchant.lua
index ed2f224d..167874c8 100644
--- a/skins/blizzard/merchant.lua
+++ b/skins/blizzard/merchant.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Merchant", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   -- Compatibility
   if MerchantGuildBankRepairButton then -- tbc
diff --git a/skins/blizzard/options-interface.lua b/skins/blizzard/options-interface.lua
index ae7ebfc6..a46b0fb5 100644
--- a/skins/blizzard/options-interface.lua
+++ b/skins/blizzard/options-interface.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Options - Interface", "tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   StripTextures(InterfaceOptionsFrame)
   CreateBackdrop(InterfaceOptionsFrame, nil, nil, .75)
@@ -75,8 +75,8 @@ pfUI:RegisterSkin("Options - Interface", "tbc", function ()
 end)
 
 pfUI:RegisterSkin("Options - Interface", "vanilla", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   UIOptionsFrame:SetParent(UIParent)
   UIOptionsFrame:SetWidth(1024)
diff --git a/skins/blizzard/options-sound.lua b/skins/blizzard/options-sound.lua
index 5594665e..341486ab 100644
--- a/skins/blizzard/options-sound.lua
+++ b/skins/blizzard/options-sound.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Options - Sound", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   -- Compatibility
   local SoundOptionsFrameHeaderText, NUM_CHECKBOXES, NUM_SLIDERS
diff --git a/skins/blizzard/options-video.lua b/skins/blizzard/options-video.lua
index 85ed3424..70c7e325 100644
--- a/skins/blizzard/options-video.lua
+++ b/skins/blizzard/options-video.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Options - Video", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   -- Compatibility
   local MAX_SLIDERS, MAX_CHECKBOXES
diff --git a/skins/blizzard/petition.lua b/skins/blizzard/petition.lua
index 9f573bfe..4cf27687 100644
--- a/skins/blizzard/petition.lua
+++ b/skins/blizzard/petition.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Petition", "vanilla", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   StripTextures(PetitionFrame)
   CreateBackdrop(PetitionFrame, nil, nil, .75)
diff --git a/skins/blizzard/professions.lua b/skins/blizzard/professions.lua
index 426a5aaf..e4a57c46 100644
--- a/skins/blizzard/professions.lua
+++ b/skins/blizzard/professions.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Profession", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   local frames = {
     ["TradeSkill"] = { "Blizzard_TradeSkillUI", "TRADE_SKILLS_DISPLAYED", "TradeSkillSkill", "MAX_TRADE_SKILL_REAGENTS" },
diff --git a/skins/blizzard/questlog.lua b/skins/blizzard/questlog.lua
index d6eb6ada..2d3d8b88 100644
--- a/skins/blizzard/questlog.lua
+++ b/skins/blizzard/questlog.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Quest Log", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   _G.QUESTS_DISPLAYED = 23
   _G.MAX_WATCHABLE_QUESTS = 20 -- TODO
diff --git a/skins/blizzard/socket.lua b/skins/blizzard/socket.lua
index 0ae80823..f2c2aeec 100644
--- a/skins/blizzard/socket.lua
+++ b/skins/blizzard/socket.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Item Socketing", "tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   HookAddonOrVariable("Blizzard_ItemSocketingUI", function()
     StripTextures(ItemSocketingFrame)
diff --git a/skins/blizzard/spellbook.lua b/skins/blizzard/spellbook.lua
index 0a78a41c..18da029b 100644
--- a/skins/blizzard/spellbook.lua
+++ b/skins/blizzard/spellbook.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Spellbook", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   StripTextures(SpellBookFrame)
   CreateBackdrop(SpellBookFrame, nil, nil, .75)
diff --git a/skins/blizzard/tabard.lua b/skins/blizzard/tabard.lua
index 1e5f241f..e8e48c21 100644
--- a/skins/blizzard/tabard.lua
+++ b/skins/blizzard/tabard.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Guild Tabard", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   StripTextures(TabardFrame)
   CreateBackdrop(TabardFrame, nil, nil, .75)
diff --git a/skins/blizzard/talents.lua b/skins/blizzard/talents.lua
index cfcd9906..f26e5a4c 100644
--- a/skins/blizzard/talents.lua
+++ b/skins/blizzard/talents.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Talents", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   HookAddonOrVariable("Blizzard_TalentUI", function()
     -- Compatibility
diff --git a/skins/blizzard/time_manager.lua b/skins/blizzard/time_manager.lua
index 935eee84..a0c3c321 100644
--- a/skins/blizzard/time_manager.lua
+++ b/skins/blizzard/time_manager.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Time Manager", "tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   HookAddonOrVariable("Blizzard_TimeManager", function()
     do -- TimeManagerFrame
diff --git a/skins/blizzard/tooltips.lua b/skins/blizzard/tooltips.lua
index 8753cee6..c050c541 100644
--- a/skins/blizzard/tooltips.lua
+++ b/skins/blizzard/tooltips.lua
@@ -1,5 +1,5 @@
 pfUI:RegisterSkin("Tooltips", "vanilla:tbc", function ()
-  local border = tonumber(C.appearance.border.default)
+  local rawborder, border = GetBorderSize()
   local alpha = tonumber(C.tooltip.alpha)
 
   for _, tooltip in pairs({GameTooltip, ItemRefTooltip, ShoppingTooltip1, ShoppingTooltip2}) do
diff --git a/skins/blizzard/trade.lua b/skins/blizzard/trade.lua
index 9b8a2a9a..a71d57bd 100644
--- a/skins/blizzard/trade.lua
+++ b/skins/blizzard/trade.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Trade", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   StripTextures(TradeFrame)
   CreateBackdrop(TradeFrame, nil, nil, .75)
diff --git a/skins/blizzard/trainer.lua b/skins/blizzard/trainer.lua
index 179a992f..8b208fca 100644
--- a/skins/blizzard/trainer.lua
+++ b/skins/blizzard/trainer.lua
@@ -1,6 +1,6 @@
 pfUI:RegisterSkin("Trainer", "vanilla:tbc", function ()
-  local border = tonumber(pfUI_config.appearance.border.default)
-  local bpad = border > 1 and border - 1 or 1
+  local rawborder, border = GetBorderSize()
+  local bpad = rawborder > 1 and border - GetPerfectPixel() or GetPerfectPixel()
 
   HookAddonOrVariable("Blizzard_TrainerUI", function()
     StripTextures(ClassTrainerFrame)