diff --git a/gui.lua b/gui.lua
index 64443b3..cacd3a3 100644
--- a/gui.lua
+++ b/gui.lua
@@ -8,7 +8,14 @@ public.config = {
 		window = {backdrop = {24, 24, 24, .93}, border = {30, 30, 30, 1}},
 		panel = {backdrop = {24, 24, 24, 1}, border = {255, 255, 255, .03}},
 		content = {backdrop = {42, 42, 42, 1}, border = {0, 0, 0, 0}},
-		state = {enabled = {70, 180, 70}, disabled = {190, 70, 70}},
+		state = {enabled = {70, 180, 70, 1}, disabled = {190, 70, 70, 1}},
+
+		blue = {41, 146, 255, 1},
+		green = {22, 255, 22, 1},
+		yellow = {255, 255, 0, 1},
+		orange = {255, 146, 24, 1},
+		red = {255, 0, 0, 1},
+		gray = {187, 187, 187, 1},
 	},
     edge_size = 1.5,
     font = [[Fonts\ARIALN.TTF]],
@@ -34,10 +41,22 @@ function private.color_accessor(callback)
 	end)
 end
 
-public.color = m.color_accessor(function(color)
-	local r, g, b, a = unpack(color)
-	return {r/255, g/255, b/255, a}
-end)
+do
+	local mt = {
+		__call = function(self, text)
+			local r, g, b, a = unpack(self)
+			if text then
+				return format('|c%02X%02X%02X%02X', a*255, r*255, g*255, b)..text..FONT_COLOR_CODE_CLOSE
+			else
+				return r, g, b, a
+			end
+		end
+	}
+	public.color = m.color_accessor(function(color)
+		local r, g, b, a = unpack(color)
+		return setmetatable({r/255, g/255, b/255, a}, mt)
+	end)
+end
 
 public.inline_color = m.color_accessor(function(color)
 	local r, g, b, a = unpack(color)
diff --git a/util/filter.lua b/util/filter.lua
index 1ef04fa..dcb45d4 100644
--- a/util/filter.lua
+++ b/util/filter.lua
@@ -555,16 +555,17 @@ function private.prettified_query_string(components)
 			prettified.append(aux.auction_listing.colors.YELLOW..component[2]..(component[2] ~= 'not' and tonumber(component[3]) or '')..FONT_COLOR_CODE_CLOSE)
         elseif component[1] == 'filter' then
             if component[2] ~= 'tooltip' then
-                prettified.append(aux.auction_listing.colors.YELLOW..component[2]..FONT_COLOR_CODE_CLOSE)
+                prettified.append(aux.gui.color.yellow(component[2]))
             end
             for parameter in aux.util.present(component[3]) do
 	            if component[2] == 'item' then
-		            prettified.append(aux.info.display_name(aux.cache.item_id(parameter)) or aux.auction_listing.colors.ORANGE..'['..parameter..']'..FONT_COLOR_CODE_CLOSE)
+		            prettified.append(aux.info.display_name(aux.cache.item_id(parameter)) or aux.gui.color.orange('['..parameter..']'))
 	            else
 		            if m.filters[component[2]].input_type == 'money' then
-			            parameter = aux.money.to_string(aux.money.from_string(parameter), nil, true, nil, nil, true)
+			            prettified.append(aux.money.to_string(aux.money.from_string(parameter), nil, true, nil, aux.auction_listing.colors.ORANGE))
+		            else
+	                    prettified.append(aux.gui.color.orange(parameter))
 		            end
-	                prettified.append(aux.auction_listing.colors.ORANGE..parameter..FONT_COLOR_CODE_CLOSE)
 	            end
             end
         end
diff --git a/util/money.lua b/util/money.lua
index 25264b1..d8789f5 100644
--- a/util/money.lua
+++ b/util/money.lua
@@ -102,7 +102,7 @@ function public.to_string(money, pad, trim, decimal_points, color, no_color)
 			text = m.format_number(copper, false, decimal_points, color)..copper_text
 		end
 	end
-	
+
 	if is_negative then
 		if color then
 			text = color..'-'..FONT_COLOR_CODE_CLOSE..text
@@ -115,7 +115,8 @@ function public.to_string(money, pad, trim, decimal_points, color, no_color)
 end
 
 function public.from_string(value)
-	for _, number in {tonumber(value)} do
+	local number = tonumber(value)
+	if number and number >= 0 then
 		return number * COPPER_PER_GOLD
 	end