I replaced an old window with glass blocks above where my tub will be. The window is 32wx24h and was actually fun putting it in though mortar can make a mess when used by a first-timer. I placed the window to where the outside was even with the sheathing, per installation instructions. I plan to tile around my tub and I believe the window will be a bit recessed on the inside. Maybe 1/2". I guess I am looking for advice on how to transition between the window and the tile if this is the case. I'm thinking a half inch of caulk would be wrong as well as ugly. Is a tile a tile? If it matches can I use tile labeled as tile for counter edges to cover the transition or should some type of molding be used. Again that seems wrong and if I picture it in my head it seems like it would look bad. Thanks.