I don't think this is possible right now because I don't see a notion of a "head mod" at least not from the data returned in the API.
The head mod is the one who is first in the list of moderators in the API. Its the user who has been moderator the longest (or originally created the community). Mods earlier in the list can also take actions against other mods (eg remove them as mod). Those later in the list cannot take any actions against earlier/higher mods.
So, would such an idea be possible, or does the API just treat them all the same?
Yes its possible, in short the first mod in the list is the top mod. Same for instance admins by the way.
I don't know if this is the right place to piggyback onto, but on a similar-ish note one small thing I miss from other apps is having pinned posts use a different font color. The little green pin icon is not super visible and I found having for example green font text for pinned posts helps me either find important posts in my feed, or quickly scroll past pinned posts in a community.
Added to the roadmap.
Community to discuss Summit, an open-source Lemmy reader for Android.
App (Play Store): https://play.google.com/store/apps/details?id=com.idunnololz.summit
APK: https://github.com/idunnololz/summit-for-lemmy/releases
Source: https://github.com/idunnololz/summit
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