I know that some in the Smaller Homes forum have done some acrylic inserts/walls. Here, we don't see that so much, but there are some who do Swanstone/Corian/Kohler Choreograph/Transolid shower or bath walls. Some like the Marbelite or Onyx Collection enclosures, too. If you don't get a better answer here, try Smaller Homes.

Quite honestly, you have more problems there than the broken tiles. The install is not good at all. Spacing is uneven. it looks really bad. Have you been watching him and taking pictures? Did he even waterproof underneath? This in my opinion should be all torn off, and completely redone, with a tile person that actually knows how to tile.

I understand and appreciate your thoroughness in trying to review with limited information. The root of the problem is each sub and project manager did not check the work they were building on. Otherwise could have been prevented. This is why I was afraid to do a project as I am not a contractor and very scary when I know more then they do. In my opinion, the pony wall (that I never wanted in the first place) is out of alignment and therefore everything else is too. On the back of the pony wall, they built the cement out too far and now can't install the tile within the trim, ugh

I believe the difference in color is too great with the white and brown. Why? 3 reasons 1. The products that are cemented to the building you will not redo anytime soon. Messy , dirty, expensive and just not worth the trouble  2. When you add a product to the building structure. Windows , floors they must last a long time. Durability, wear and tear, and STYLE. All equal a story of when the home was designed.  The look over a period of time 10 years + and the home will become "out of date" Needs a face lift . 3. The homes we admire, the Museums, Churches, Libraries, Opera House have one common thread. At a glance they are timeless. Built in 1940, 1990 etc  The crystal clear item is not seen  For this reason I would not go "trendy". Generally our first choice is the right one. Simple and elegant  How do you change this ad time moves on. Color Bedroom a change of bedspread. Bathroom towels become a dark navy or  deep forest green. Yellow for spring  Paint a wall blue, hang a piece of art  The change is simple and your money well spent for resale  Take a moment to do another board  Remove the brown and replace with a neutral. Try an Odegard runner - There are so many options  Enjoy