Get, set, and list display resolution

Current versions

Formula history

FX Coudert screenresolution: remove minimal macOS version
Mike McQuaid Use hash rockets again. (#5177)
Mike McQuaid Use Ruby 1.9+ symbol hash keys in all formulae. (#4942)
Nikolaus Wittenstein Add descriptions to all remaining homebrew packages
Jack Nagel Drop redundant :branch => "master"
Misty De Meo screenresolution: requires 10.6+
Misty De Meo screenresolution: specify compiler
Jon Stacey screenresolution 1.6 (new formula)