Happy Holidays and Happy New Year!
MiDiO! Update 0.9.1.0 contains the following:
A new festive UI theme has been added. You can check it out in the Settings menu!
A holiday item set!
An early preview for the new Rumi controls! Run, Sprint, Jump (better), Dash and Drift in Hyper Speed! (Controller recommended)
Various Bugfixes! (Of course)