Our game rules
I have some pretty strict rules for Darkvision.
Darkvision does not use light and therefore can not see colours of any kind.
There are no reflective surfaces in darkvision. All surfaces are matte including mirrors.
There are no transparent materials in darkvision. All surfaces are opaque including water.
Since you can not see colour, you can not see the pigmentation used in print. If you want to read, it better be carved.
If you're using darkvision, you're in dim light which adds disadvantage on Wisdom (Perception) checks that rely on sight.
Even if the whole party are dwarves, bring a damn torch.