Hey there markmakes
Here is a bit of information that you might find useful:
- Overlays are the exact size of the stream.
- Components are up to 50% of the width.
- Panels have a max height of 500px. Though a few pixels are lost around the edge, thus the largest size for a panel is 318 width by 496 height.
From what we can see, it looks like you may have pixel zoom enabled on your dashboard.
Hope this helps!