magnet:?xt=urn:btih:f427ba8f0c06eb7408f76bdb5cb8fd1ae638fc45&xt=urn:md5:d2b77581ffaec7ca88c33264f52c0981&xl=45152&dn=CheckboxImagesfxIcon-4.tif&as=https://download.qt.io/learning/examples/FX_Material_Showroom_Assets/images/Icons/CheckboxImagesfxIcon-4.tif&tr=http://bt.qt-project.org:6969/announce