{"categories":[],"packages":[],"usage":[{"description":"Enable x11-libs\/libXpresent support","isdefault":false,"packageid":61869,"use":"xpresent"},{"description":"Enable the XPresent extension for sync to vblank","isdefault":false,"packageid":52775,"use":"xpresent"},{"description":"Enable support for the X Present extension via x11-libs\/libXpresent (experimental)","isdefault":false,"packageid":69700,"use":"xpresent"}],"use":{"description":"Enable the XPresent extension for sync to vblank","isdefault":false,"packageid":52775,"use":"xpresent"}}