Changed color mixing to use weighted average instead of addition. Should help against values reaching FF too fast.

Adjusted color mixing helper to use inbuilt procs.

code/modules/reagents/Chemistry-Colours.dm

@@ -34,7 +34,7 @@
 	var/blue = mixOneColor(weight,bluecolor)
 
 	//assemble all the pieces
-	var/finalcolor = "#[red][green][blue]"
+	var/finalcolor = rgb(red, green, blue)
 	return finalcolor
 
 /proc/mixOneColor(var/list/weight, var/list/color)
@@ -58,10 +58,9 @@
 	mixedcolor = round(mixedcolor)
 
 	//until someone writes a formal proof for this algorithm, let's keep this in
-	if(mixedcolor<0x00 || mixedcolor>0xFF)
-		return 0
+//	if(mixedcolor<0x00 || mixedcolor>0xFF)
+//		return 0
+	//that's not the kind of operation we are running here, nerd
+	mixedcolor=min(max(mixedcolor,0),255)
 
-	var/finalcolor = num2hex(mixedcolor)
-	while(length(finalcolor)<2)
-		finalcolor = text("0[]",finalcolor) //Takes care of leading zeroes
-	return finalcolor
+	return mixedcolor