Release Notes for 481

Add SurfaceGui and BillboardGui Brightness property

Optimized and cleaned up ladder detection.

Fixed UserInputService.ModalEnabled.

Added Player.NetworkPing. This value returns an int that represents the minimum ping time (in milliseconds) of a player, but does not represent how long something like a RemoteEvent may actually take to process (this can change based on how busy the server is, how many remote events are being sent, etc.). This value is only accessible on the server.

Fixes issue with Toolbox Asset Preview overflowing at narrow widths. Adds AudioPlayer scrubbing function to Toolbox Asset Preview. Toolbox Asset Preview shows times in the local timezone.

Improve performance of PlayerListManager with high player counts

Particle sizes are now allowed to be greater than 200.

Removed a Luau crash caused by the type checker reordering method definitions before the object definition.

Fix a Luau crash that would occur when checking code that tried to use game:FindService with an illegal service name.

Fixed issue with RequestStreamAroundAsync that occurred when used without a loaded character.

Fix issue where plugins could not be installed correctly from Roblox website.

A Publish Failed Page should appear if a game failed to publish.

Made the Luau types of GroupService:GetAlliesAsync and GroupService:GetEnemiesAsync more precise