GtkScale: when focusing on the handle with the keyboard, the highlight is barely visible (in dark style)
Affected version
gtk4-4.12.3-1.fc39.x86_64, libadwaita-1.4.0-1.fc39.x86_64
Description
When using dark style, focusing on the handle with the keyboard shows a highlight that is barely visible due to low contrast. This problem is worse when the scale color is different like the one present in Settings > Display > Night Light:
Screencast_from_2023-11-25_00-06-46
People with color blindness might have some difficulty to see this highlight. By the way, the contrast is a lot better in light style (albeit the color and color transparency being the same):
Is there a reason why the blue highlight has transparency comparing with the blue from GtkSwitches and GtkRadioButtons, for example? I wonder if this issue is a duplicate of libadwaita#436
Edited by Automeris naranja