How to Make Dock Transparent

Open Terminal and type

defaults write com.apple.dock hide-mirror -bool true; killall Dock

Revert to default

defaults write com.apple.dock hide-mirror -bool false; killall Dock

A temporary solution against the solid white background of Mavericks’s dock on left or right.

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How to Remove Hollow Star Rating in iTunes

1) Change the problematic album into “As Grid” view

2) Click and hold the star of the album, and then drag its rating to 0

Note: Individual track ratings will not be affected.