The arrows on the site that come from right click drag are only colored green. This color along with the color of movement of piece can become invisible with different theme color which is inconvenient. In order to select a different color you have to hold alt and right click drag which is annoying. Their has to be a color customization for the arrow and previous move along with piece selected. Make it happen.
Not just alt! you can hold shift and ctrl too for additional colors :)
Not just alt! you can hold shift and ctrl too for additional colors :)
It doesn't matter, holding a keyboard key to draw arrows in itself is hassle because mostly its your hand and the mouse to play. a color customization would change everything.