Highlight borders for changed config options in config tab

This highlights borders for controls for changed config options when
they are in non-default state. Useful for quickly checking what options
user configured and prevents forgetting about some config set by
accident (dropdowns in non-default state are especially hard to spot).

Signed-off-by: Tomas Slusny <slusnucky@gmail.com>

src/Classes/CheckBoxControl.lua

@@ -38,6 +38,9 @@ function CheckBoxClass:Draw(viewPort, noTooltip)
 		SetDrawColor(0.33, 0.33, 0.33)
 	elseif mOver then
 		SetDrawColor(1, 1, 1)
+	elseif self.borderFunc then
+		r, g, b = self.borderFunc()
+		SetDrawColor(r, g, b)
 	else
 		SetDrawColor(0.5, 0.5, 0.5)
 	end

src/Classes/ConfigTab.lua

@@ -265,8 +265,23 @@ local ConfigTabClass = newClass("ConfigTab", "UndoHandler", "ControlHost", "Cont
 				end
 			end
 
+			local innerShown = control.shown
+			if not varData.doNotHighlight then
+				control.borderFunc = function()
+					local shown = type(innerShown) == "boolean" and innerShown or innerShown()
+					local cur = self.input[varData.var]
+					local def = self:GetDefaultState(varData.var, type(cur))
+					if cur ~= nil and cur ~= def then
+						if not shown then
+							return 	0.753, 0.502, 0.502
+						end
+						return 	0.451, 0.576, 0.702
+					end
+					return 0.5, 0.5, 0.5
+				end
+			end
+
 			if not varData.hideIfInvalid then
-				local innerShown = control.shown
 				control.shown = function()
 					local shown = type(innerShown) == "boolean" and innerShown or innerShown()
 					local cur = self.input[varData.var]

src/Classes/DropDownControl.lua

@@ -235,6 +235,9 @@ function DropDownClass:Draw(viewPort, noTooltip)
 		SetDrawColor(0.33, 0.33, 0.33)
 	elseif mOver or self.dropped then
 		SetDrawColor(1, 1, 1)
+	elseif self.borderFunc then
+		r, g, b = self.borderFunc()
+		SetDrawColor(r, g, b)
 	else
 		SetDrawColor(0.5, 0.5, 0.5)
 	end

src/Classes/EditControl.lua

@@ -241,6 +241,9 @@ function EditClass:Draw(viewPort, noTooltip)
 		SetDrawColor(0.33, 0.33, 0.33)
 	elseif mOver then
 		SetDrawColor(1, 1, 1)
+	elseif self.borderFunc then
+		r, g, b = self.borderFunc()
+		SetDrawColor(r, g, b)
 	else
 		SetDrawColor(0.5, 0.5, 0.5)
 	end

src/Modules/ConfigOptions.lua

@@ -1736,7 +1736,7 @@ Uber Pinnacle Boss adds the following modifiers:
 
 	-- Section: Custom mods
 	{ section = "Custom Modifiers", col = 1 },
-	{ var = "customMods", type = "text", label = "", apply = function(val, modList, enemyModList)
+	{ var = "customMods", type = "text", label = "", doNotHighlight = true, apply = function(val, modList, enemyModList)
 		for line in val:gmatch("([^\n]*)\n?") do
 			local mods, extra = modLib.parseMod(line)