The primary text in Granite.HeaderLabel misaligned when placed in Gtk.Popover

[ryonakano]

What Happened?

The primary and secondary text in Granite.HeaderLabel are aligned to the start if it's placed in Gtk.Box.
However, the primary text is not aligned to the start if the label is placed in Gtk.Popover.

Steps to Reproduce

1. Clone, compile, and run the following demo app: https://github.com/ryonakano/junk/tree/headerlabel-test
2. Click the "Open Popover" button to see the style differences between Granite.HeaderLabel in Gtk.Box and Granite.HeaderLabel in Gtk.Popover

Expected Behavior

The primary and secondary text in Granite.HeaderLabel should be aligned to the start, regardless of the widget where it is placed.

OS Version

7.x (Horus)

Software Version

Latest release (I have run all updates)

Log Output

N/A

Hardware Info

Not relevant

[ryonakano]

I thought we can simply fix this issue by removing this line which was introduced in #1233:

stylesheet/src/gtk-4.0/widgets/_popovers.scss

Line 80 in be3742f

label.heading,

Then I can confirm the issue is fixed:

However, I noticed this fix introduce regressions in other places like Display plug:

[danirabbit]

Yeah it's trying to be overly clever tbh. We should remove it and then we'll have to fix the places where it breaks but it'll be more right

[ryonakano]

@danirabbit Possibly you fixed this in #1325?

[danirabbit]

@ryonakano thank you! I was looking for an issue report for this