I am using the tiled gallery layout and I am pleased with it.
I increased the content-width from the functions.php file so that the gallery would look larger a fit my site better. The downside is that images displayed can look a little soft especially when they are displayed on a large "tile". Here's an example: http://pierrickstevant.com/places/places-color/
How can I modify the thumbnail size so that they would look sharp as they should?