Some emblem icons lack contrast and are nearly invisible, especially when on top of a folder icon
In /usr/share/icons/Adwaita/*/emblems, I see that some emblems are available in symbolic variants and not in color versions, and vice versa.
I am having great difficulty seeing the "read-only", "unreadable", "symbolic link" folder emblems in Nautilus' listview because they are low-contrast shapes and are nearly invisible on top of the folder icons (white on light gray on light brown):
This is particularly true at small sizes, and for some odd reason, the problem is even more pronounced when running the Adwaita dark theme instead of the light theme:
Could we have much more contrast between the white shapes and the background? Shouldn't the background be much darker (closer to black)? Or possibly use some colors? (I could imagine an orange background for read-only, red for unreadable, blue for symlink, for example)