Headerbar switches (either enabled, disabled and in backdrop) are too hard to see
enabled switched off

disabled switched off

Adding the old Yaru style switches for reference (because they looked pretty great TBH)

This might be fixed by #1478
Depending on the colour of the headerbar you end up with, you need to adjust the code in tweaks that tries to mitigate the fact that switches in the light theme are drawn with the mixins from drawing that expect the theme to be light
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Adding the old Yaru style switches for reference (because they looked pretty great TBH)