Lichess-style hot keys have been implemented to choose board square markers and arrow colors drawn on the chessboard

[whelanh]

Following up on a good user suggestion, users can now use hot key combinations to select different arrow colors and the color of square markers in the same way they can on Lichess.

Right-click = green (the "default" color)
Ctrl + right-click = red
Alt + right-click = blue
Alt + Ctrl + right-click = cyan
Shift + right-click = yellow
Alt + Shift + right-click = orange

Using these key combinations, users no longer have to open up the little icon that looks like a pen to change arrow/square colors.

In addition, the marker for squares is now a "rounded" hollow square outline similar to the shape used by ChessBase.