Add icons in addition to color to indicate valid/invalid spaces #3
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Related to #2.
Here's some screenshots at my (poor) attempt at adding icons to help indicate validity of moves/spaces, using SVG pattern defs as fills instead of just colors and opacity.
It's just using an additional rect and text in the pattern as the background/fill. I'm not sure why the text is so bold, it makes it a little hard to distinguish the icons, but I'm sure there's a way to fix that. Or, could use O and X or something instead, for more control.
Bear, valid, color, with icons:
Bear, valid, greyscale, with icons:
King, invalid, color, with icons:
King, invalid, greyscale, with icons: