Will SPS that lost its colour on one side from no light get its colour back?

[stan255]

I bought a green slimer that the seller placed lying down. One side of the coral has lost its colour due to the lack of light on how it was placed. I have since mounted it standing up.

Will it get its colour back?

See attached image

 

[bradreef]

If you face an underside of an acro towards light, it will eventually color up there.