You want Aqua UI like this, right? https://qph.fs.quoracdn.net/main-qimg-22f0e0539f2a9ed0d80aeddb7cf1cea0 https://qph.fs.quoracdn.net/main-qimg-22f0e0539f2a9ed0

You want Aqua UI like this, right? https://qph.fs.quoracdn.net/main-qimg-22f0e0539f2a9ed0d80aeddb7cf1cea0 https://qph.fs.quoracdn.net/main-qimg-22f0e0539f2a9ed0d80aed... You can achieve this on Windows / Mac / Linux / Android / iOS with CopperSpice, a Qt4 fork which continues to receive updates. You would use the QMacStyle class: https://www.copperspice.com/docs/cs_api/class_qmacstyle.html https://www.copperspice.com/docs/cs_api/class_qmacstyle.html