Hi. I'm thinking that you are looking at the chart incorrectly as many do. The chart is old but has not changed except to add on forum colors.
To specifically answer your question. Scroll down the column on the far left hand side that shows blade LED. Stop at Violet Amethyst ( this also includes the forum member color of dark VA ). In that section look across the page to the right and you will see all the possible flash colors for violet in the boxes. You will find only two options of Silver and Bane's Heart. If you were to choose a Red blade, then there are five possible FoC options.
Prior to the introduction of the 4 or 2 channel Emerald driver, quick disconnects of the LED or using a RGB saber were and still are fairly popular choices. In the long run the Emerald is the most cost effective and offers the greatest range of color diversity. That is how Jedi Nox was able to do purple with a red flash.
