A dark grout might seem different, but so long as you don't look for a grout that is usually so dark this looks black, you ought to be fine.
People that have bathroom tiles ideas may consider mosaics as their tile choice as they have a timeless quality and suit almost any available space. They are available in glass type finishes, porcelain, natural stone and in various sizes. Because of the nature of mosaic, care will need to be taken when fixing them to avoid adhesive squeezing up through the joints and achieving contact with the adhesive of every piece of tile is quite difficult if inexperienced. Remember if using mosaics in a wet area that has no tanking system installed, that there is a higher potential for water to ingress into a water sensitive substrate and cause a potential failure.
For tiles which might be not so sleek, you can possibly space the tiles firmly together or leave a smallish gap. A 1/8th-inch gap belongs to the standards used with tiling.
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