Run 'test/color_chooser'
Click 'fl_show_colormap()'
... shows the following error message (xdg_surface...):

$ test/color_chooser
makeWindow:0x7ffcce12f118 wl_compositor_create_surface=0x1f9e780 scale=1
makeWindow:0x7ffcce12e598 wl_compositor_create_surface=0x20417d0 scale=1
makeWindow: xdg_wm_base_get_xdg_surface=0x20f1ca0
xdg_surface@34: error 3: xdg_surface has never been configured
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Error message in weston:
[16:06:32.781] libwayland: error in client communication (pid 53444)


'top' shows 100% CPU activity of test/color_chooser:

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                                                                   
  53444 albrecht  20   0   30392  18112  14656 R 100,0   0,1   1:50.92 color_chooser                                                                             
-------------------------------------------------^^^^^