>>6053
>Does this already account for darkvision? What about creatures without?

Darkvision specifically says it raises light levels 1 step, so Dim becomes normal and normal becomes bright. Most dungeons have dim lighting from candles or glowing mushrooms or natural light coming in. I will amend it to say only directed bright light will have the bonus +1d4 not static in-situ light.

>if the light is bright and dynamic +1d4

The movement of light and shadow may reveal illusions, show nuances, or defeat camouflage and such.

If the light is dim, the colors are washed out, it's effectively night vision so dark vision will enhance the light to normal but without color. It will matter only to me, you will see a normal roll but the DC may be higher, however, you won't know. Using a dynamic bright light *may* lower the DC 1d4. This also applies to blindsight, there is no color.

Animals and creatures who don't have dark vision will suffer the penalty due to dim light conditions. I would rather apply it to raise DC rather than include a -=1d4 in the roll.

Enemies will obviously see the light. I will allow that hooded lanterns have a shutter that will block the light perfectly. See the Lantern in "A Tell-Tale Heart." If it's lit, it lasts a number of hours whether the shutters are open or not.

If you are holding the lantern and it's bright, yes, they will see you as well as if you were in broad daylight.