I use Inkscape to create icons. And I see that Font Awesome talks about their icons being
pixel perfect. I like the idea and always tried to do the same with the default canvas which is A4. But when I have to use it on a 48px or 64px ( etc ) icon templates ( built-in in Inkscape ) I see that
pixel perfect is no longer valid with the icon. ie, when I try to fit the icon in the 64x64 px template it loses the pixel perfection it had while I drew it in an A4 sized canvas.
What is your method of avoiding this ? I find it hard to generate ideas on a 48x48 or 64x64 px canvas. It is easier to try different things until we reach the final product when we have space on the canvas.