## Link to GitHub Issue or related Pull Request, if one exists
n/a
## Description of change
Create three distinct layers for the overlay:
1. Bottommost persistent layer - non-interactable layer that is always
on. This was only for notifications, but now the FPS widget lives here
as well.
2. Overlay windows layer - most interactable windows go here.
3. Topmost main menu - this is reserved for the main menu (escape key)
and this is a modal dialog that occludes the layers below.
Why?
- `toggle overlay` behavior with FPS widget *also* toggling on/off was a
bit confusing (now they're two separate keys)
- FPS widget is popular, but it caused the entire overlay to be active,
which affects how input is handled
- the main menu being a standalone window was a little awkward (now it's
a modal)
## Testing
## Link to GitHub Issue, if one exists
n/a
## Description of change
Use fmt library for formatting time
Round down sub-second units so that the FPS counter only updates once
per second (instead of Time and Uptime ticking independently)
clean up usage of `localtime` in `logging.cpp`
## Link to GitHub Issue, if one exists
#477
## Description of change
Add a new option for scaling the overlay.
Gitadora Arena will receive 250% by default.
Various overlay windows have been updated to scale properly, not perfect
but they are at least usable.
## Link to GitHub Issue, if one exists
n/a
## Description of change
Change the dark brown colors used in widget backgrounds to dark gray.
Decrease the in-game overlay transparency (more opaque): 80% -> 96%.
## Testing
Tested cfg and in-game overlay.
bicarus