To implement this tweak:
1. Start a new Terminal session (in Finder click Applications > Utilities > Terminal).
2. To set this to Strong, type (or copy and paste) the following command:
defaults write NSGlobalDomain AppleFontSmoothing -integer 4
To set this to Smoother, type (or copy and paste) the following command:
defaults write NSGlobalDomain AppleFontSmoothing -integer 3
To set this to Medium, type (or copy and paste) the following command:
defaults write NSGlobalDomain AppleFontSmoothing -integer 2
To set this to Minimal, type (or copy and paste) the following command:
defaults write NSGlobalDomain AppleFontSmoothing -integer 1
To set this to Disabled, type (or copy and paste) the following command:
defaults write NSGlobalDomain AppleFontSmoothing -integer 0
3. To reset this setting to the default value, type (or copy and paste) the following command:
defaults delete NSGlobalDomain AppleFontSmoothing
4. To activate this tweak please reboot the system.
Close the Terminal session by typing exit at the prompt.

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