Freeform Backgammon v1.2.7 released

Released v1.2.7 update for Freeform Backgammon. This minor update improves the reliability and robustness of the anti-aliased triangle shader. There were more reports of some GPUs not showing any "points" on the board, and this update should fix the problem.

The points were invisible on some GPUs because different GPUs support different ranges of values for floating point numbers. In some computations for the anti-aliased triangles (specifically functions of the dot products of the vectors describing the triangle), the intermediate values in the GPU would overflow and as a result pixels would be ignored that should not be ignored.

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