So, we have the gorgeous Penumbra base, so why not an Umbra base?
Like how we have identical bases that are still different from each other, Umbra would be like Penumbra, but darker (almost onxy-like, but not as dark) with the ring being less visible.
That is because a Penumbra is a "shadow cast by the earth or moon over an area experiencing a partial eclipse."
But an Umbra is "the fully shaded inner region of a shadow cast by an opaque object, especially the area on the earth or moon experiencing the total phase of an eclipse." And yes, the Umbra picture is the same used for the Solar Eclipse background ^^.



Second base is Annular.
An Annular Eclipse is "an eclipse of the sun in which the edge of the sun remains visible as a bright ring around the moon." It creates what looks like to be a "ring of fire" in the sky.

I imagine the base will have the same pattern as the Penumbra base, but with the orange coloration and the ring being the sun part ^^

>>>>If anyone would like to create mockups for me, please feel free to! I will give you credit for the beautiful creations ^^!

If you don't support, don't hesitate to tell me! Criticism is welcomed!

[EDIT]
For releasing the bases (if they get added, which is unlikely oop), I could say November, or even October (since they might be spooky enough).