add placeholders

assets/images/imagegen.py

@@ -0,0 +1,17 @@
+def getRGBfromI(RGBint):
+    blue =  RGBint & 255
+    green = (RGBint >> 8) & 255
+    red =   (RGBint >> 16) & 255
+    return red, green, blue
+
+mx = pow(2,24)-1 # i.e. 16777215
+
+x = 0
+alphabet = ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"]
+interval = int(mx/(len(alphabet)))
+with open("gen.sh", "w") as f:
+    for i in range(0, len(alphabet)):
+        red, green, blue = getRGBfromI(i*interval)
+        letter = alphabet[x]
+        f.write("convert -size 32x32  xc:rgb\(" + str(red) + "," + str(green) + "," + str(blue) + "\) " + letter +".png\n")
+        x = x + 1