Change look of unlocked icon

[kintrupf]

Without a loupe or excellent eyesight it is very hard to distinguish the "unlocked" icon from the "locked" icon.
Could you please change the "unlocked" icon to the attached example? Or maybe just add both types?

This is how it looks today:

lock_unlock.jpg (7.85 KiB) Viewed 5365 times

And this is how the unlocked icon should look:

unlocked.jpg (3.24 KiB) Viewed 5365 times