Layer change colour dialog opens off screen in 2.6

[l0ne5tar]

Description of the bug

When I try to right click edit the colour of a layer change in sliced/preview mode the modal colour selection dialog is opened off screen and to all intents and purposes the app has locked up.

This does not occur with 2.5.

I suspect (but have not confirmed) that this is due to using this computer with high DPI scaling enabled (~250%, im using a TV :) )

here's the output from Nirsoft's WinLister:

with 2.5 the colour dialog opens at:

Location: (1377, 603) Size: (1452, 954)

and with 2.6 (alpha 6) it opens at:

Location: (5616, 2734) Size: (1390, 1014)

The screen is 3840 x 2160.
(Incidentally, with DPI scaling at 250-300% the legend in the preview mode is really intrusive.)

sys info:
PrusaSlicer
Version: 2.6.0-alpha6+win64
Build: PrusaSlicer-2.6.0-alpha6+win64-202303311519

Operating System: Windows
System Architecture: 64 bit
Windows Version: Windows 10 (build 19044), 64-bit edition
Total RAM size [MB]: 68,641MB
OpenGL installation
GL version: 4.6.0
Profile: Core
Vendor: NVIDIA Corporation
Renderer: NVIDIA GeForce RTX 2080/PCIe/SSE2
GLSL version: 4.60.0

Project file & How to reproduce

To repro:

• Set windows to dpi scaling of 300%
• Load prusa slicer 2.6a6
• load any model
• insert a colour change
• r-click a layer after the colour change to trigger the colour dialog
• observe locked up application ( you can recover with alt f4 or external program (such as WinLister) to recenter the dialog)

Checklist of files included above

• Project file
• Screenshot

Version of PrusaSlicer

PrusaSlicer-2.6.0-alpha6+win64-202303311519

Operating system

Windows 10 (build 19044), 64-bit edition

Printer model

Mk3S

[l0ne5tar]

I think this is the cause of
#10135

[l0ne5tar]

Hi, this is still broken, how do we raise some attention?

[YuSanka]

Thanks for your report.
We can reproduce this issue.
SPE-2089

[lukasmatena]

Fixed in 2.7.2-alpha2. Closing.