Added first part of DFA handout

Advanced/DFAs/tikxset.tex

@@ -17,29 +17,63 @@
 		execute at end scope={\endpgfonlayer}
 	},
 	%
-	% Arrowhead tweaks
+	% Arrowhead tweak
 	>={Latex[ width=2mm, length=2mm ]},
+	%
+	% Labels inside edges
 	label/.style = {
-		circle,
+		rectangle,
 		% For automatic red background in solutions
 		fill = \ORMCbgcolor,
-		draw = none
+		draw = none,
+		rounded corners = 0mm
 	},
 	%
 	% Nodes
 	main/.style = {
 		draw,
 		circle,
-		fill = white
+		fill = white,
+		line width = 0.35mm
 	},
 	accept/.style = {
 		draw,
 		circle,
 		fill = white,
 		double,
+		double distance = 0.5mm,
+		line width = 0.35mm
 	},
-	hatch/.style = {
-		pattern=north west lines,
-		pattern color=gray
+	start/.style = {
+		draw,
+		rectangle,
+		fill = white,
+		line width = 0.35mm
+	},
+	%
+	% Loop tweaks
+	loop above/.style = {
+		min distance = 2mm,
+		looseness = 8,
+		out = 45,
+		in = 135
+	},
+	loop below/.style = {
+		min distance = 5mm,
+		looseness = 10,
+		out = 315,
+		in = 225
+	},
+	loop right/.style = {
+		min distance = 5mm,
+		looseness = 10,
+		out = 45,
+		in = 315
+	},
+	loop left/.style = {
+		min distance = 5mm,
+		looseness = 10,
+		out = 135,
+		in = 215
 	}
 }