Pat S. said: You could make a suggestion post in the suggestion forum. It would use one of your votes but it would at least put your idea out there in the public view to be talked about. I would first recommend going through the other posts to see if there is one of similar nature and just adding a comment in to the discussion then adding your vote to it also. Pat gave a good tip there, to go through the other Suggestions and see if you can add your comment with a matching idea. As someone who has looked through all the suggestions, in my recent research this hasn't been suggested before, except in one way of looking at it. The nearest suggestion might be the request for Themes & Campaign Customization which is asking for ways to change the interface & redecorate the Roll20 windows, buttons, borders. The only reason that's related is, you could ask for something like a black background instead of the grey border, if this were implemented. Otherwise I think that a "Fit Background Image to Window Fullscreen" sort of request would be something new on the current Suggestions & Ideas subforum. NOTE: WORKAROUND METHODS: I'd first try what Vince suggested (just scroll). Secondly, related and perhaps obvious but just in case you hadn't tried it, another good option is to Zoom your map so it fills the whole screen (there are 3 ways to zoom, toolbar on the left, Zoom slider on top-right, or with a keyboard shortcut and mouse/trackpad). Thirdly -- However if you are still finding you want to stay "unzoomed" at the current level, AND you want a different color besides grey appearing on the left, there's still a workaround way & you're nearly there already. Just a few easy tweaks on page settings, then scroll it, and those borders will be hidden away. Just expand your Page Size in the page settings (go to the Page Bar at the top, mouse over the current map page and click it's little settings gear icon), and here you can fill the page background with whatever color you want. Then scroll your map to the exact position you want it to appear on your background, whether that's flush left or centered or off-center or whatever position you want. In other words tack your map onto a larger canvas background and recolor the background. When you make a larger canvas background you have a lot more flexibility to scroll & reposition your map where you want on the screen in the window. On your screenshot showing the problem, it already looks like you have a larger canvas area (the WHITE area to the right) and I feel that you could hide/remove the grey border on the left & right by scooting your map deeper into the white area, and scroll the white area left and up to cover what's currently the unwanted grey-hatch border. Perhaps the main tip I'm letting you know is that you can recolor that white area to whatever color you want, and scoot it into the area that's currently the grey border. On this graphic of the Page settings from the Roll20 wiki... Let's say your actual map is 25x25. Resize your Page to 40x40 and make the background a nice color to go behind your map. Now you can fill the window with your background color and scoot your map to the exact spot you want it to appear. That should help to simulate the look you're wanting.
