I wrote this email some days ago to Fred privately, because I was thinking that 
the problem was relative to my window manager that is young and ealyy stage, so 
i post here too bcause the problem is quite similar.

Hi Fred,

I write becaus ethe gnustep support in uroswm is almost completed, but there 
are few things to fix, actually in the miniwindow managment. Explain it with 
words would be a bit complex especially with my english, so I made a gif pic to 
share with you.

Here is the lin that will expire after one month:

https://ibb.co/3ND5Dhw

Now i explain the problem in steps amd you will noticed them in the gif:

1) First time run uroswm
2) First time a GNUstep App
3) When the App is first time started the miniwindow on the left-bottom corner 
doesn't draw the icon, or better, it draws the icon but disappers quite soon. 
The icon just appears for some instants and then disappers.
4) I close the App
5) I run again the app
6) At this point, the App is started for the second time, ll works as expecetd 
and the miniwindow draws the icon ans show it as expected.

Don't be scared by bad colors in the gif i just set low quality to the recorder.

Why at the first start of theapp the icon is not painted as we expects? Maybe 
at the first run GS is doing some particular requests or setting/asking for soe 
extended window manager hints?

Thank you,
Alex


________________________________
Da: Gnustep-dev <gnustep-dev-bounces+alex22_7=hotmail....@gnu.org> per conto di 
Riccardo Mottola <riccardo.mott...@libero.it>
Inviato: venerdì 16 ottobre 2020 11:40
A: gnustep-dev@gnu.org <gnustep-dev@gnu.org>
Oggetto: windowmaker - application icon missing at first start

Hi!

I noticed we recently have a strange behaviour, which is slightly
different from setup (= installation on different computers) to setup I have

The first time I start a GNUstep application with windowmaker (I mean
the first GNUstep app started ever after X11 start essentially) it has a
bad icon.
- on some setup it has a "generic" icon by windowmaker
- on other setups it has a black looking icon, as only the "mask" of the
icon, the contours are drawn

A restart of the app and then starting any other app, fixes that.


This was not happening before. I think it is related to at least this
commit - merge:

https://github.com/mozilla/newtab-dev/raw/6be44da368fb869a3d3e1975f515857352a7d9fc/browser/modules/ProcessHangMonitor.jsm

Can you reproduce? How is it for you?

Riccardo


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