Our layout fits the entire monitor before. (as attachment)
It is optimized for 1024'x768.
After test severals resolutions, when I put 1024x768, the width was OK but I always have an issue with the height. I didn't take a picture.
Thanks for sending the layout.
So I don't really see much difference between displaying this layout on version 3.4.3 and displaying this layout on version 3.7.0-beta.4. Except that the the fonts on 3.4.3 look much more blocky/pixelated, and they look much smoother on version 3.7.0-beta.4.
With layout scaling disabled, the layout looks a lot like the picture you provided. With layout scaling enabled, the layout fills the entire screen. However, the layout was clearly designed for 1024x768 screens, as the outermost container (which is a column) as its dimensions specified as width 1024 and height 768. The layout also has "Stretch" specified. The main column cannot stretch (its dimensions are specified), so it remains at 1024x768 and it ends up in the middle of the screen vertically.
There are a couple of things you can do to try to get this layout to look right.
I think the best solution is to simply remove the height and width from the outermost column. Then the layout will properly stretch to the actual screen dimensions. Remember to turn off layout scaling. If you're using a 16:9 display in a common resolution like 1920x1080 and find the fonts too small, you can turn layout scaling on and set the optimal resolution to something like 1280x720. This will allow the layout to stretch to the correct proportions for your display before scaling up to 1920x1080.
You can also simply enable layout scaling and leave the dimensions set on the column. But as 1024x768 is a 4:3 ratio, unless you are displaying it on a 4:3 display it's not going to look right. The layout will attempt to stretch horizontally to reach the full width of the display. This will cause the height to scale proportionally and you'll end up with part of the layout cut off at the bottom of the display.