Fonts way too large in Windows after v1.3.1 when using DPI scaling

[tomasz1986]

Relevant components

• [x] Standalone tray application (based on Qt Widgets)
• [ ] Plasmoid/applet for Plasma desktop
• [ ] Dolphin integration
• [ ] Command line tool (syncthingctl)
• [ ] Integrated Syncthing instance (libsyncthing)
• [ ] Backend libraries

Environment and versions

• Versions of syncthingtray: 1.3.1
• Qt version: 6.4.1
• Operating system (name and version): Windows 10

Bug description

After upgrading to v1.3.1, fonts in SyncthingTray have increased in size drastically. For example, when the OS is set to 150% scaling, the fonts seem to be scaled at 175%, and when the OS is set to 175%, the fonts look as if they were scaled at 200%, etc.

Steps to reproduce

1. Set DPI scaling in Windows to a value larger than 100%, e.g. 150%.
2. Start SyncthingTray.

Expected behavior

Font size should match the size used in the rest of the OS (with the correct DPI scaling applied)

Screenshots

As seen in the screenshot, the icons are scaled correctly but the fonts are much larger than necessary.

[Martchus]

It is an issue in Qt itself, see the updated release note in the GitHub release section.

[tomasz1986]

I did actually see the note but I thought the v1.3.1 version itself was already supposed to be fixed. I've only now noticed the separate download… I use a custom script to download and upgrade SyncthingTray but it wasn't able to automatically catch the additional download, only the original release 🙁. Thank you for the quick fix anyway!

[Martchus]

By the way, last time I had just swapped out binaries after fixing a specific build and then users were concerned about the binary being compromised. So this time I decided to upload the new binary only in addition.