[BUG] Black bars around Konsole when transparency is enabled. about hello HOT 9 OPEN

MAYBE I might get back at maintaining this as I'm going to change my hardware setup. It's a weird issue but I think I know whats causing this. Please keep discussion going on while I decide wether or not to get back into making hello great again.

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I believe it has to do with the shadows.
I don't get the black bars with hello-shaders (and blur) on, but the bars appear whenever there is a window open/close animation. This happens for me in Dolphin as well.

Edit: Here are some pics and screen captures for the windows animations.

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I think it has to do with how the shadows calculate the inner boundary box which is apparently offset from the actual window frame. Just a note to myself.

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I am facing this after upgrading to Plasma 5.18. Previously, while on 5.17, these bars used to be visible during dragging a window only. Now it became permanent.

Update: As I found, during the update hello-shaders got removed. And the black bar is the direct outcome of its absence. Once I reinstalled hello-shaders, the black bar has disappeared.

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From my tests earlier this year it appears as if Plasma 5.18 causes a lot of issues. Check out if the solution from @sowrensen works for you, @4VRDriver

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I installed and activated hello-shaders but it makes no difference to me. By enabling blur the black bars become hardly noticable though. (I don't know why the black bars werent blurred a few days ago but now they are.=

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@luema I think you are right.
Changing the size of the shadows have a direct effect on the size of the black bars. By disabling the shadows they disappear.

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@4VRDriver I tried different shadow/blur combinations to see what was going on and that's when I realized the black bars must be due to the shadows. I've updated my previous comment with those screenshots if you're interested.

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Can confirm, with the window effects enabled.

Also, nice to see that you might come back to this!

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