we recently installed glass blocks with led lighting between them. So far they are wonderful

We are wanting the natural light to come into the shower, which is why we are thinking glass blocks, with a pattern on the glass. Do you think it'll look and function great or should we do something else?.

Sorry for all the questions but we haven't seen anyone with a window in their shower. Would you happen to have a picture of a frosted window installed in a shower? Also, how would we control moisture when we are shower people and there will be water coming in contact with the window everyday?

It is possible to have both a frosted window that is also done in glass blocks or also to use a "glass frit process" as well to provide privacy and style. I'll include some pictures below and a link to a web page to show this option as well:

http://innovatebuildingsolutions.com/products/glass-block/colored-frosted-glass-blocks

If you want the window to be operable another option are acrylic block windows - here is the link for that:

http://innovatebuildingsolutions.com/products/glass-block/acrylic-block-egress-decorative-windows

You mentioned controlling moisture with the window in the shower. Unlike the attached pictures, the window we were thinking of having in the shower would literally be a wall inside the shower, not a tub, so water would be on it several times a day. Can this be done with out having problems with the integrity of the window? What type of window would be best? NOTE: Currently we have a regular double glass window over the tub. We were hoping to replace the tub with a shower only and enclose our current shower to extend the closet size.

The glass block shown above could be used for shower windows as well. I would recommend using urethane grout between the glass block joints if you like this type of material.

I'm not so attached to the glass blocks but we currently have a window that will need to be replaced since it's clear. Is there another type of window we could use? It needs to be diffused.

Another option would be a "decorative glass window" or just a frosted vinyl window. I'll include an image of the decorative glass window - you'll see a link in my post above to learn more about this window as well. The application below does not show this window in a shower but with it's vinyl frame it certainly is applicable for a shower

What is the wall color?

Hello, the wall color is Ashland Slate from Benjamin Moore. It is from their Aura collection and is a Matte finish