Icons are located in the default build directory. This is it's structure:
├── icon.icns
├── icon.ico
├── icon.png
└── icons
├── 128x128.png
├── 16x16.png
├── 256x256.png
├── 32x32.png
├── 512x512.png
└── 64x64.png
I tried to specify path to icon in the configuration. Result is the same:
Ubuntu 19.04

Any workaround?
This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.
Same problem here.
Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?
This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.
Yes, it IS relevant.
Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?
This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.
Once again: it IS relevant.
Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?
This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.
YES YES YES YES, ONCE AGAIN, YES
+1
+1
Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?
This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?
This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.
Hello darkness, my old friend. We've been abandoned once again.
Most helpful comment
YES YES YES YES, ONCE AGAIN, YES