Panopoly provides a number of panel layouts that already are responsive. They use media queries to modify the layout with a screen size below 480px.
My question is: Is it possible to change this screen size? Our theme uses slightly different screen sizes for the responsive layouting of the rest of the page so it would be great if the media breakpoints would match.
I know how to create new layouts that break on different screen sizes, but how can i modify the already existing ones panopoly provides?