The Greek word that is used for “pale” as in “Pale Horse” is “χλωρός” (chloros) which actually means the color of pale green. Some of the artists took that into consideration.
I am sure that Bible Translators have difficulty discussing a green horse, so they just kept the “pale” part.
However, Green is a very evocative color in these End Times. Most obviously, it could symbolize the “Green” Movement, which actively seeks to rob people of their energy sources, their livelihoods, and any progress in a Civilization or Culture.
Less obviously, Green is reported to have been Mohammed’s favorite color. Most of the flags of Islamic States are green or have green in them.
A Green Horse must have puzzled Bible Translators for Centuries. How could the color Green, which symbolizes life also mean DEATH?
Here are some ironies:
Clorox kills germs. Germs are living things, much as we don’t like them.
Chlorine Gas is Deadly.
Chloroform can put you to sleep, or even kill you.
Here’s is the STRONG’S entry for χλωρός.
https://biblehub.com/greek/5515.htm
Check out the ghostly green horse and rider at the end of this video. Did you see it?
https://www.youtube.com/watch?v=KgTiqaKSJNk
Veeeery interesting. Thanks for that education.