I've got a couple of different tent designs I've been testing that I like better than anything else out there right now, but they're both floor-less.

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Take a look at Tarptent.com

Good stuff. I like mine. Basic colors.

I also like the Tarptent Moment DW. I have tested mine in all kinds of weather and it has held up well. I run it floorless from time to time when the weather and bugs are not really an issue.  

If you don't like color you could always go with a polycro from Gardner Outdoor Lightweight Designs(GOLD). I've never used one but I see a few thru hikers with them, they seem to hold up better than you'd think.

Anoher Happy Tarptent user here.

I been using both a Contrail and a Double Rainbow for over 10 years now.

Condensation can be an issue in a single wall but chosing a good site can alleviate much of that problem.

Sometimes though the site choses you.

Henry Shires the Owner builds a good product and gives excellent customer service.

I just ordered his new model the Bowfin 1 as a free Standing Shelter can sure come in handy  in the areas I play in here in the North East and it is a double wall.

Tarptents gray material is mute enough that it doesn't stand out but could be better.

In the Winter I been using a Hilleberg Soulo and 

I can't say enough good things about it, a fantastic tent, bombproof and sets up easily.

It is no light weight though.

I have it in Sand and it blends nicely into the woods yet is cheerful on the inside.

I used a Hilleberg Akto as well for awhile, nice shelter but I found it finicky to set up, but I am clumsy.

The old Hilleberg Green is a great color, the new green verges on black.

If you can find a MSR Hubba HP that is another good one. Sets up easy and is storm worthy and the green color that mine was is not too bad for a big brand tent.

I prefer a floor in my tent, if you don't care about that a pyramid of the size and brand of your chosing is a great way to go.

I ran a Go Lite Shangri-La 2 for a couple of years  but that was the old yellow color so a no go for you and spent a few nights in a Seek Outside Beyond Timberline 2.

The Seek Outside is a great brown for the woods.

I like tents.

 

 

If a lightweight, 3-Season option will work, Big Agnes is offering a color option this year that looks tolerable ... Olive Green.

Lately I've become a big fan of lightheart gear tents. My Solo is silver with a burgundy floor (probably fits in your skittles-colored category), but I just picked up a Solo Awning model that is foliage gray with a forest green bottom that looks pretty inconspicuous.

I don't have any pics of my foliage tent yet, but here's my non-awning tent. They are both dual wall, but the rain fly is attached at the spine. For setup, just stake out the corners of the tent and climb inside for the rest. Uses trekking poles or you can get carbon poles from them.




The Awning version I just bought has more of an awning on one side where the rain fly is propped up and doesn't go all the way to the ground. It's good for rain days where you want to be able to see out more.

Here's somebody else's Solo tent in Green: