Sorry for the late response! Things have been crazy here and I find myself with little time to sit down at my computer.
So we decided on Pebblesheen Irish Mist.

(It was between that and Seafoam Green.) We asked about the Luminous Blends, but my husband just shook his head no at me when he heard the extra $4k cost. I have to choose my battles, so I backed off on that one being that I won my "spa with fireplace" and "making the patio larger" battles.
Fabulous back yard for a pool, and great design. We ran into an abandoned water well in our dig. Can't wait to see your finishes!
Thank you and Ugh!, so you feel our pain. Fortunately the drywell beneath the pool is helping with water drainage for the autocover box, not that it should really fill with all that much water once it's enclosed/covered.
I went with 2x2 glass tiles and my PB was very thankful ?. To me I like the look better than the 1x1. I also just used glass on my feature wall and regular 6x6 for waterline, I feel this will be less maintenance for the hubby ?
The PB gave us a catalog, we checked out tile stores and I ultimately ordered some more samples. For some reason I keep gravitating towards the 3/4"x3/4" and 1"x1" tiles. Thankfully my husband was on the same page as me, so that was one less battle.
We have 1x1 glass tiles and used pale grey tinted grout. No maintenance issues so far (though we only finished in December). I wanted the look of classic mosaic and like them. In my opinion, they sparkle more than larger tile when the sun hits them, but when the sun (or moonlight) is not on them, they are less shiny than larger tiles (because of the additional grout lines). I personally like 1x2 just as much, fwiw.
Also, the NPT tile we used (Arctic Ice) has plastic sheet on the front which is removed during installation. I think they may adhere better than meshbacked glass tile because more surface area is in contact with the thinset.
I'm a sparkle junky.

And like you, I want to use a tinted grout. The PB said the tile guy should be able to do a tint similar to the Pebblesheen color.
Great build. Looks really good. Glad ur builder said to fill it for the winter. Some don't say that and u might end up with an ark att the end of the winter.
Did ur township say anything about he fence. I thought we were going to have to do a fence with steel spikes every 6 feet metal cheap mesh but they said I'm fine with the construction one. I just can't get an occupancy permit until the permanent one is up.
Yeah, there's a gunite pool & spa buried further in our backyard because the original owners didn't keep enough water in it and they ended up with an ark.
No word from the town. Thankfully. We already know we're going to have to change some of our fencing to meet code before we submit for the C/O.