I can create an electronic color tab for the PSK Cheat Sheet or KMO4 vial label, but I personally on't know which shade to reproduce for the colors. Rose, purple and deep purple are all subjective. I haven't found anything on the web that helps, neither a layman's interpretation or a scientific direction (i.e., add 0.1 gram of KMO4 to 1 liter of distilled water).<br><br>Also, I was reviewing the cheat sheet (again) in light of this thread and wonder if I should change the order in which the diferent water treatments appear. The order may suggest an order of preferrence, which was not the intent. But if so, how would you rank the treatments? My order would be:<br><br>1. Boil water<br>2. Purification tablets (Potable Aqua)<br>3. Chlorine<br>4. Iodine<br>5. KMO4<br><br>How does that sound?