Since yesterday The border of plasma dialogs like the clock popups have got rounded borders also when the composite is disabled, just like tooltips before,ok not a big deal.
But what is changed is that before tooltips shape was an hardcoded rounded rectangle with a fixed shape and an also hardcoded white border and that kinda sucked...
A second problem connected to that was when compositing was active the windows only faked a non rectangular shape, but they still were stupid rectangles, so for instance you couldn't click on a totally transparent area to make the popup go away.
Now the window shape is computed from the alpha channel of the background svg, it means now the windows have a shape similar to the one you would expect seeing the fancy transparent svg.
And it causes another problem if not well-managed, because if you use a fancy svg with cool antialiased borders, without composite you will get something awful like that (here zoomed 2x):
See that two black pixels on each edge? and if the ...read more...