close menu, before opening the Properties (Menu - Edit - Options ...)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36600 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
repair style of buttons

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36601 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e