Gary: About the background color, I was told by several IYT users that blue background would be confusing because of blue color used for Go-Moku on IYT. But I think that I could add some color schemes, similar to chess ones - see Settings / Chess page as an example.
Rotation - this feature is not supported yet but I can disable the automatic rotation for black player, no problem. Line4 is implemented in this way.
(hide) If all of a sudden the site shows up in a different language, just click the flag for your language and it will be back to normal. (pauloaguia) (show all tips)