Merge pull request #10813 from Ghommie/Ghommie-cit540

Unicode support updates from tgstation.

code/modules/reagents/chem_wiki_render.dm

@@ -196,7 +196,7 @@
 		return ""
 
 
-	var/outstring = "|<a href=\"#[R.name]\"><h5 id=\"[R.name]\">!\[[R.color]\](https://placehold.it/15/[copytext(R.color, 2, 8)]/000000?text=+)[R.name]</h5></a> pH: [R.pH] | "
+	var/outstring = "|<a href=\"#[R.name]\"><h5 id=\"[R.name]\">!\[[R.color]\](https://placehold.it/15/[copytext_char(R.color, 2, 8)]/000000?text=+)[R.name]</h5></a> pH: [R.pH] | "
 	var/datum/reagent/R3
 	if(CR)
 		outstring += "<ul>"

code/modules/reagents/chemistry/reagents/other_reagents.dm

@@ -540,9 +540,13 @@
 
 			if(MUTCOLORS in N.dna.species.species_traits) //take current alien color and darken it slightly
 				var/newcolor = ""
-				var/len = length(N.dna.features["mcolor"])
-				for(var/i=1, i<=len, i+=1)
-					var/ascii = text2ascii(N.dna.features["mcolor"],i)
+				var/string = N.dna.features["mcolor"]
+				var/len = length(string)
+				var/char = ""
+				var/ascii = 0
+				for(var/i=1, i<=len, i += length(char))
+					char = string[i]
+					ascii = text2ascii(char)
 					switch(ascii)
 						if(48)
 							newcolor += "0"
@@ -553,7 +557,7 @@
 						if(98 to 102)
 							newcolor += ascii2text(ascii-1)	//letters b to f lowercase
 						if(65)
-							newcolor +="9"
+							newcolor += "9"
 						if(66 to 70)
 							newcolor += ascii2text(ascii+31)	//letters B to F - translates to lowercase
 						else