Openboard don't show desktop.

Software tested: Openboard 1.3.4

ReactOS version tested: reactos-bootcd-0.4.15-dev-3229-g22e58e6-x86-gcc-lin-dbg

Test environment: VBox 6.1 with VBOX guest additions.

Description of the issue:
When OpenBoard is installed, click the "Show desktop" button.
Then, you should be able to run the desktop and edit it. But the desktop is totally black. Also if you try the capture tool, happens the same. In this screen you are able to paint, but that's pointless without the system background.

Log:

Open Board - No screen.log

libpng warning: iCCP: known incorrect sRGB profile

(/win32ss/user/ntuser/layered.c:197) err: prcDirty

Added API reading from API Monitor under Windows:
OB in API Monitor.log

Visual example:

How behaves in Windows
Windows XP OB OK.png
How behaves in ReactOS
ReactOS OB Bad.png