KDE’s New CSS-Based Style Engine Union Is Coming to KDE Plasma 6.7

KDE’s New CSS-Based Style Engine Union Is Coming to KDE Plasma 6.7

Written By
MN
Marcus Nestor
May 29, 2026

Union is designed to solve a long-standing fragmentation in the KDE/Plasma ecosystem, where different themes and styles are being used by various parts of the Plasma desktop and KDE apps. Union solves this issue by providing a cohesive way to style everything, from traditional desktop apps to modern mobile-friendly components.

MN

Marcus Nestor

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