snapshot of specific window includes other windows on top

[strobelight]

Brief summary of issue

Using the window snapshot feature incorrect if window behind others; should bring into focus first.

Steps to reproduce the issue

1. have at least 2 windows, one on top of the other part way
2. do a window snapshot of the window that is behind
3. notice snapshot includes window that was on top

Error output

Extra information, such as Shutter version, display server in use (Xorg or Wayland), operating system and ideas for how to solve:

• running on manjaro
• sddm display manager
• shutter version: 0.99.6
• graphics platform is X11
• kde plasma 6.3.6

[Photon89]

Possibly, KDE has too slow animations when changing to the background window. You could reduce the animation duration in KDE settings to check whether this is indeed the reason for the issue.