Use masked Kirigami icons with explicit theme colors for shell controls so the Shift icon theme renders reliably across light and dark surfaces. Replace the status-bar battery helper with theme icon names so battery glyphs also come from org.shift.icons.
Give the app-thumbnail close affordance a symbolic white X on a dark circular backing so it remains visible over previews.
Reshape the convergence quick settings into a compact
promoted grid and add Clipboard, Disks & Devices, and a
drawer-hosted System Tray popup.
Retry applet popups when their full representation becomes
ready so the desktop utilities open reliably.
Wi-Fi, Bluetooth, Sound and Battery behave differently from
toggle tiles: tapping them should open a detail panel, not
flip a switch. On a phone the long-press convention handles
this, but with a mouse long-press is unnatural.
Pull these four tiles out of the grid when convergence mode
is active and show them as full-width rows above the remaining
tiles. Each row has two click zones — a toggle pill on the
left that still switches the service on/off, and a detail
area on the right (name, status, chevron) that opens the
Plasma applet popup. The grid hides the duplicates so they
only appear once.