Installed a skin and something looks off? These are the problems players run into most, and how to fix each one.
Make sure the folder sits directly inside osu!/Skins/ and isn't nested one level too deep (for example Skins/MySkin/MySkin/skin.ini). Restart the game or press Ctrl+Shift+Alt+S to reload.
HD elements need the @2x suffix (for example hitcircle@2x.png). If only the non-@2x version exists, osu! upscales it and it looks soft.
Beatmap colours override skin colours unless you tick "Ignore all beatmap skins" in options. Check the [Colours] section of skin.ini too.
Each key count has its own [Mania] block in skin.ini. Adjust ColumnStart, ColumnWidth and HitPosition for the layout you play.
Skins can replace normal-hitnormal.wav and friends. Delete the file from the skin folder to fall back to the default sound.
If you'd rather start from a skin that already works, osuskins.org collects osu! skins with previews, so you can compare cursors, hit circles and mania layouts before downloading.
Notes by ZentaoLabs.