What tile trim for bathroom?

[passenjer]

I'm getting my bathroom refurbished. The wall tiles are silvery white shown here: https://www.ctdtiles.co.uk/gemini-tiles/havana/p-7718-bayamo-white-matt-tile-223x223mm.aspx

The grout will be gunmetal (silvery grey).

I've been asked what tile trim I want. The guy sent me pictures of a curved edge and a square edge, both in white plastic, to choose between. However, I can see that metallic is also an option. I really can't tell what would look best - curved or straight, white or metallic?

Any advice?

Personally I dislike tile trim and would just have the tiles without any trim. He ought to tile downwards to the floor/bath so any cut tiles (if an inexact number of tiles is required) will be against the floor or bath, ie there will be no exposed cut edges that would require trim.

He's tiling upwards (from a horizontal baton, not from the floor). There is a tiled window sill so a perpendicular edge between two tiles that needs trim.

Ah gotcha. I think in that situation I would probably choose curved white as it will fit with it being a windowsill.

Thanks. Two pics attached showing curved or straight (both in white).