niccolove added a comment.
> You're rendering a transparent panel. we're still even blurring the background very expensively. And then we're drawing something on top. That's very wasteful. > We're also mixing up shadows from one SVG with the output of another. Right. Originally I just changed the svg to be opaque, but I couldn't get a transition out of it. Also, I guess this doesn't solve the blurring problem. > Also our isMaximised detection is horrific. What do you mean with our? Is the way I used TaskManager very wrong (quite possible) or is the window.isMaximized implementation bad in win? > We also need to think about how this plays in with other themes. You can't assume everyone uses Breeze. I checked this. It always fallback to Breeze opaque background following the theme colors, so it should always work without breaking them. REPOSITORY R119 Plasma Desktop REVISION DETAIL https://phabricator.kde.org/D28627 To: niccolove, #plasma, davidedmundson Cc: ngraham, davidedmundson, plasma-devel, Orage, LeGast00n, The-Feren-OS-Dev, cblack, jraleigh, zachus, fbampaloukas, GB_2, ragreen, ZrenBot, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, ahiemstra, mart