Here are two examples of partial bathroom renovations where an old standard bathtub was replaced by a new custom built ceramic shower stall, with glass doors. The ceramic tiles blend in with the original tiles used in the rest of both bathrooms for a perfect match.
Notice the details: ceramic accents on the walls, a wide ceramic ledge on the far wall that can be used as a bench or as a shelf for toiletries and a convenient wall niche to hold soap, shammpoo and other bath accessories.