broulik added a comment.
> So changing only the theme would mean to change the svg of `ButtonStyle`, which is not desirable. Then we need to introduce new elements in `widgets/button.svg` or a new `widget/toolbutton.svg` for `ToolButton` which is used and falls back to the old behavior if not present (to not break compat with other themes). `QToolButton` is QtWidgets which has nothing to do with QML or Plasma styles. REPOSITORY R242 Plasma Framework (Library) REVISION DETAIL https://phabricator.kde.org/D4797 EMAIL PREFERENCES https://phabricator.kde.org/settings/panel/emailpreferences/ To: subdiff, #plasma Cc: ltoscano, broulik, hpereiradacosta, plasma-devel, #frameworks, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol