* Flip death gravity when upside down
* Improvements to code per Joe's request
* Recenter resized window on launch
* Fix Underground BG not animating
* Fix ANN Hill spots and random SnowNight Hill tile
- ANN's hills were accurate to the NES version, but inconsistent with literally every other hill lol (SMB and SMBLL use the hill tree positions that SMM and SMBDX use, the third set of trees are further to the right for some reason)
- there was a random tile in SnowNight and SnowNightANN that the other Hill files use from the ROM directly, so i edited the graphics and the AssetRipper jsons to make them consistent (copy-pasted Snow "Day" version parameters and renamed the theme name accordingly, worked when i tested)
* Update Assets Version so the hills fucking update
Ramona
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