Scalling problems on qt5 and qt6 with ANKI_WEBSCALE

Anki Desktop
1

When I run anki anki-2.1.51-linux-qt6 with
ANKI_WEBSCALE=0.9 ./anki text in viewer and preview are normal, I mean the size that I set in previous anki version in template but there are inconsistencies in interface with 120%:

1440×840 103 KB

With ANKI_WEBSCALE=1.2
interface seems to match

1440×839 108 KB

but reviewer and preview becomes ridiculously huge:
1440×842 45.5 KB

When I have 100% in preferences and keep ANKI_WEBSCALE=1.2 viewer keeps huge and interface is too small.

Version ⁨2.1.51 (cf78a555)⁩
Python 3.9.10 Qt 6.2.2 PyQt 6.2.2

Maybe the solution would be if ANKI_WEBSCALE would not affect font sized set in template.

The same is on Version ⁨2.1.51 (cf78a555)⁩
Python 3.9.10 Qt 5.15.2 PyQt 5.15.5
and it also doesn’t work properly.
Version ⁨2.1.52 (a989e508)⁩
Python 3.9.10 Qt 5.15.2 PyQt 5.15.5

So, it doesn’t work on QT5 and QT6 with any Anki version.

My system uses
KDE Plasma Version: 5.24.4
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3
Graphics Platform: X11
Graphics Processor: NVA8

I wonder if the problem disappears when system QT gets upgraded.

I report it because I suppose that you created ANKI_WEBSCALE option as a native alternative independent from add-ons.

I don’t want to annoy you Damien but font size option provided by add-on was really the solution that has worked for years perfectly and still works. That is a surprise to me but Set Font Size seems to work on Version ⁨2.1.51 (cf78a555)⁩
Python 3.9.10 Qt 5.15.2 PyQt 5.15.5
and on
Version ⁨2.1.52 (a989e508)⁩
Python 3.9.10 Qt 5.15.2 PyQt 5.15.5
and everything scales properly.

2

WEBSCALE applies the same scaling to all areas of the app, including your card templates. If you designed them to go with a smaller size, then they’ll need adjusting.

The WEBSCALE workaround is not required on most machines from what I can tell, and perhaps depends on your system DPI setting. An option to set a font may come at one point, but I do not have time at the moment, and it looks like that add-on will get an update anyway.