Board backgrounds library

[shinuito]

@yebellz

You need to turn off the coordinates or make a different background that has a margin to account for the coordinates.

And you need to make the line color match the background color.

@yebellz

Set the lines to (224, 187, 108) for RGB values, or the hex is #e0bb6c (note: the color input widget is browser dependent and some will accept color values in different ways).