I bought a backgammon game many years ago now, and both dice are a white colour with the numbers 1 and 4 in red and the rest in black. They’re pictured like this on the box too, so its obviously intentially been done like this. I’ve looked online at other games, and none of these use multicoloured dice.

Does anybody have any idea why these 2 numbers are a different colour to the rest? (theres no mention of it on the included instructions buy generic drugs online either…)