diff --git a/.gitignore b/.gitignore
index e61bca2..1436223 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,7 @@
 # ---> Python
+# emacs
+*~
+
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]
diff --git a/README.md b/README.md
index 6d244a2..ff1cd9b 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,5 @@
 code to drive a light show on the edges of a small stellated dodecahedron, each with a Phillips Hue lightstrip embedded in it.
 
 This project depends on the phue package (https://github.com/studioimaginaire/phue) which you should be able to install via `sudo pip3 install phue`.
+
+Copyright 2019 by Glen Whitney with contributions by others as noted in the code.
diff --git a/firestar.py b/firestar.py
index a53d579..d0cc668 100644
--- a/firestar.py
+++ b/firestar.py
@@ -43,7 +43,25 @@ edgecode[29] = 'XX';
 
 edges = [ b[code] for code in edgecode ]
 
-def hueint(frac): return int(frac*65535)
+lasthue = 65535
+fullbright = 254
+fullsat = 254
+
+# some color preliminaries
+white = {'hue' : 0, 'bri' : fullbright, 'sat' : 0}
+black = {'bri' : 0, 'sat' : 0}
+
+def hueint(frac): return int((frac % 1)*lasthue)
+
+def fshue(frac):
+    '''Returns a hue number based on the fractional part of frac, warping
+    [0,1/2) to [0,1/6) and [1/2,1) to [1/2,2/3]
+    '''
+    frac = frac % 1
+    if frac < 0.5: return hueint(frac/3);
+    else: return hueint((frac+1)/3);
+    
+def vivid(hue): return {'hue' : hue, 'bri' : fullbright, 'sat' : fullsat}
 
 # A "setting" is a pair of a list of N lists of edges, and a list of N dicts
 # understandable by Bridge.set_light,
@@ -53,10 +71,10 @@ def hueint(frac): return int(frac*65535)
 # in any list will be left alone.
 
 alltogether = [range(0,Nedges)];
-thevoid = (alltogether, ['bri' : 0])
-deepblue = (alltogether, [{'hue' : hueint(2/3), 'bri' : 254, 'sat' : 254}])
-yelorng = (alltogether, [{'hue' : hueint(1/6), 'bri' : 254, 'sat' : 254}])
-redred = (alltogether, [{'hue' : 0, 'bri' : 254, 'sat' : 254}])
+thevoid = (alltogether, [black])
+deepblue = (alltogether, [vivid(hueint(2/3))])
+yelorng = (alltogether, [vivid(hueint(1/6))])
+redred = (alltogether, [vivid(hueint(0))])
 
 # A "simpleshow" is a pair of a list of settings, and a list of triples of
 # integers: (setting_index, transition_to, hold_time)
@@ -68,8 +86,9 @@ redred = (alltogether, [{'hue' : 0, 'bri' : 254, 'sat' : 254}])
 intro = ([thevoid, deepblue, yelorng, redred],
          [(0,1,0), (1,30,20),
           (2,1,3), (1,1,3), (2,1,3), (1,1,3), (2,1,3), (1,1,3), (2,1,0),
-          (3,50,20), (0,30,5)]
-         )
+          (3,50,20), (0,30,5)])
+
+interlude = ([thevoid], [(0,30,10)])
 
 def runsimple(ss):
     '''Takes one argument, a simple show; causes the simple show to be
@@ -88,3 +107,37 @@ def runsimple(ss):
         time.sleep(hold_time/10)
 
 runsimple(intro)
+
+# Tour of 5-colorings by Henry Segerman
+basehues = {'Red': 0, 'Orange': 5461, 'Yellow': 10923, 'Cyan': 32768,
+            'Blue': 43691}
+
+fivehues = [basehues[c] for c in ['Red', 'Orange', 'Yellow', 'Cyan', 'Blue']]
+
+fivecolors = [vivid(h) for h in fivehues]
+
+fivecs = [];
+
+fivecs.append([[0,22,9,12,25,17], [27,20,10,7,1,15], [26,11,21,8,3,16],
+               [29,23,13,18,5,2], [28,24,4,6,14,19]]);
+
+#fivecs.append(([[0,22,9,12,25,17], [27,20,15,24,6,4], [26,11,21,8,3,16],
+#                [29,23,13,18,5,2], [28,14,19,10,1,7]], fivecolors));
+#fivecs.append(([[12,25,17,8,3,21], [27,20,15,24,6,4], [26,11,16,0,9,22],
+#                [29,23,13,18,5,2], [28,14,19,10,1,7]], fivecolors));
+#fivecs.append(([[12,17,8,3,28,10], [27,20,15,24,6,4], [26,11,16,0,9,22],
+#                [29,23,13,18,5,2], [14,19,1,7,25,21]], fivecolors));
+#fivecs.append(([[12,17,8,3,28,10], [27,20,24,4,16,9], [26,11,0,22, ,15,6],[29,23,13,18,5,2],[14,19, 1,7, 25,21]]
+#
+#"5"
+#[[17, 3, 28, 0,6,11],[27,20, 24,4, 16,9],[26, 22, 15, 8,12,10 ],[29,23,13,18,5,#2],[14,19, 1,7, 25,21]]
+#
+#"6"
+#[[17, 3, 28, 0,6,11],[27, 24, 16, 7,19,21],[26, 22, 15, 8,12,10 ],[29,23,13,18,5,2],[14, 1, 25, 4,9,20]]
+
+exec(open("fivecolor.py").read())
+
+runsimple(interlude)
+runsimple(jmsshow1)
+runsimple(interlude)
+runsimple(jmsshow2)
diff --git a/fivecolor.py b/fivecolor.py
new file mode 100644
index 0000000..3d9e918
--- /dev/null
+++ b/fivecolor.py
@@ -0,0 +1,38 @@
+### firestar show based on the most symmetric five-coloring
+### by John M. Sullivan
+
+def somecolors(x, n=5, wh=False):
+    colors = []
+    for i in range(0,4):
+        if i < n:
+	   colors.append(vivid(fshue(x+i/5)))
+	elif i == n and wh:
+	   colors.append(white)
+	else:
+	   colors.append(black)
+    return colors
+
+jmscolorings1 = [
+    somecolors(0,0), somecolors(0,0,True),
+    somecolors(0,1), somecolors(0,1,True),
+    somecolors(0,2), somecolors(0,2,True),
+    somecolors(0,3), somecolors(0,3,True),
+    somecolors(0,4), somecolors(0,4,True),
+    somecolors(0)
+]
+
+jmssettings1 = [(fivecs[0], col) for col in jmscolorings1]
+
+jmsshow1 = (jmssettings1,
+            [(0,1,2),
+             (1,1,2),(0,1,2),(1,1,2),(2,1,30),
+             (3,1,2),(2,1,2),(3,1,2),(4,1,30),
+             (5,1,2),(4,1,2),(5,1,2),(6,1,30),
+             (7,1,2),(6,1,2),(7,1,2),(8,1,30),
+             (9,1,2),(8,1,2),(9,1,2),(10,1,90)])
+
+jmscolorings2 = [somecolors(x/120) for x in range(0,119)]
+jmssettings2 = [(fivecs[0], col) for col in jmscolorings2]
+jmstimings2 = [(n,2,0) for n in range(0,119)]
+
+jmsshow2 = (jmssettings2, jmstimings2)