Revert "Use IconProcs lib ReadRGB instead of another same functionality proc."

This reverts commit 11f1d82c65.

code/modules/reagents/Chemistry-Colours.dm

@@ -1,24 +1,40 @@
 /proc/mix_color_from_reagents(var/list/reagent_list)
-	if(!reagent_list || !reagent_list.len) return 0
+	if(!reagent_list || !length(reagent_list))
+		return 0
 
-	var/list/rgbcolor = list(0,0,0,0)
-	var/finalcolor = 0
-	for(var/datum/reagent/re in reagent_list) // natural color mixing bullshit/algorithm
-		if(!finalcolor)
-			rgbcolor = ReadRGB(re.color)
-			finalcolor = re.color
-		else
-			var/newcolor[4]
-			var/prergbcolor[4]
-			prergbcolor = rgbcolor
-			newcolor = ReadRGB(re.color)
+	var/contents = length(reagent_list)
+	var/list/weight = new /list(contents)
+	var/list/redcolor = new /list(contents)
+	var/list/greencolor = new /list(contents)
+	var/list/bluecolor = new /list(contents)
+	var/i
 
-			rgbcolor[1] = (prergbcolor[1]+newcolor[1])/2
-			rgbcolor[2] = (prergbcolor[2]+newcolor[2])/2
-			rgbcolor[3] = (prergbcolor[3]+newcolor[3])/2
-			rgbcolor[4] = (prergbcolor[4]+newcolor[4])/2
+	//fill the list of weights
+	for(i=1; i<=contents; i++)
+		var/datum/reagent/re = reagent_list[i]
+		var/reagentweight = re.volume
+		if(istype(re, /datum/reagent/paint))
+			reagentweight *= 20 //Paint colours a mixture twenty times as much
+		weight[i] = reagentweight
 
-			finalcolor = rgb(rgbcolor[1], rgbcolor[2], rgbcolor[3], rgbcolor[4])
+
+	//fill the lists of colours
+	for(i=1; i<=contents; i++)
+		var/datum/reagent/re = reagent_list[i]
+		var/hue = re.color
+		if(length(hue) != 7)
+			return 0
+		redcolor[i]=hex2num(copytext(hue,2,4))
+		greencolor[i]=hex2num(copytext(hue,4,6))
+		bluecolor[i]=hex2num(copytext(hue,6,8))
+
+	//mix all the colors
+	var/red = mixOneColor(weight,redcolor)
+	var/green = mixOneColor(weight,greencolor)
+	var/blue = mixOneColor(weight,bluecolor)
+
+	//assemble all the pieces
+	var/finalcolor = rgb(red, green, blue)
 	return finalcolor
 
 /proc/mixOneColor(var/list/weight, var/list/color)

code/modules/reagents/reagent_containers/borghydro.dm

@@ -1,3 +1,4 @@
+
 /obj/item/weapon/reagent_containers/borghypo
 	name = "Cyborg Hypospray"
 	desc = "An advanced chemical synthesizer and injection system, designed for heavy-duty medical equipment."