guoyunhe added a comment.
In QML applications, buttons and line edits are already same height, the same height as QLineEdit in Qt Widgets applications. If we increase the height of QLineEdit, we have to change QML components' height, too. The amount of work will be bigger. If a view contains a lot of QLineEdit/QComboBox rows (like many KCM views), the content might overflow. So it is safer to make button height shorter. REPOSITORY R31 Breeze REVISION DETAIL https://phabricator.kde.org/D25381 To: guoyunhe, #breeze, #plasma Cc: ndavis, GB_2, ngraham, plasma-devel, LeGast00n, The-Feren-OS-Dev, jraleigh, fbampaloukas, ragreen, ZrenBot, alexeymin, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, ahiemstra, mart