Question:

Looking for a simple tool to help me visualize what the environment would look like under different temperature/color stars. Basically, just a landscape picture with a slider that changes the color gamut as I adjust the Kelvin temperature of the star.

Reason if you're curious:

I'm designing a p-type binary star system for my D&D campaign. One star is further into the blue spectrum than the Sun and the other is further into the red and most of the time their net spectrum is akin to the sun. However, whenever one star eclipses the other there is a relatively dramatic color shift and the barriers between my planet and its "echos" thin. When the blue eclipses the red, portals to the Shadowfell become more prevalent and when the red eclipses the blue, portals to the Feywild appear.