Grey flash after transitions between virtual desktops

[WesselKroos]

Environment

Windows build number: 10.0.17763.805
PowerToys version: 0.11.0
PowerToy module for which you are reporting the bug (if applicable): FancyZones

Steps to reproduce

Prerequisites:

• Have at least 2 virtual desktops
• Start at the first virtual desktop
• Enable the FancyZones setting Flash zones when the active FancyZones layout changes
• Optional: Disable the Animate windows when minimizing and maximizing option in the Windows 10 Performance Options. This makes the unexpected flash more noticeable.

Reproduction steps:

1. Press CTRL+WIN+Right arrow

Expected behavior

Don't flash after the transition to another virtual desktop. Only flash when the active FancyZones layout changes.

Actual behavior

• Animate windows enabled: (2 random scenarios)

1. While the animation to another virtual desktop is running a grey overlay scrolls into view. The grey overlay disappears after the virtual desktop animation is completed.
2. Or a light grey flash appears after the transition to another virtual desktop.

• Animate windows disabled: After the virtual desktop animation is completed a light grey flash appears as if the active layout changed.

Screenshots

Without virtual desktop animation enabled:

With virtual desktop animation enabled:

[vldmr11080]

In progress.

[enricogior]

Fix available in v0.15.1 https://github.com/microsoft/PowerToys/releases