Yeah drag, and drop .gif as frames in a new sprite, but they are practically useless, no alpha, low quality, etc.
The only useful purpose of text is for events, and I would expect someone to create some type of editor at some point, but it would be more useful for batching, or correcting errors than event creation.
There might be a case for an event editor if say C2 were to ever be open sourced, but that's highly unlikely as its direct competition, and should be for several more years.
Like some bastardized editor made to work with C2 and Godot in 2030.