Individual Mastery Sigils

[Jajarra]

I've been using the Mastery Sigil as part of most of my frames fashion since I started playing and part of the reason for that is their relative simplicity compared to other sigils, with straightforward designs with no overbearing effects. Up through Hunter this has been working well for me but the Eagle and up sigils look a little busy to the point of making me not want to rank up any further. Can we get an option to pick a specific rank's sigil to display? Maybe unlocked at the final rank of each tier?