Code review comment for lp:~widelands-dev/widelands/toolbar-dropdown-menus

Not nice, you open the tool popup toheeter with the tool-size window.
The zoom Icons look a bit rough?
Via the Editor-Main-Menu one can open all windows at the same time,
this cries for all kinds of Errors.
Tutorial did not wait until I actually used te "Show Buiding Spaces" menu
Tutoral crashes with assert AND ASAN:
...
Clicking tab 'small'
Pressing button 'barbarians_lumberjacks_hut'
Clicking button 'barbarians_lumberjacks_hut'
Fatal exception: [../src/graphic/image_io.h:35] Image not found: images/wui/menus/menu_stock.png
FATAL ERROR - game crashed. Attempting emergency save.
Game: Writing Preload Data ... AddressSanitizer:DEADLYSIGNAL
=================================================================
==18043==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x00010d04de4b bp 0x7ffee53a0910 sp 0x7ffee53a0460 T0)
==18043==The signal is caused by a READ memory access.
==18043==Hint: address points to the zero page.
    #0 0x10d04de4a in Widelands::GamePreloadPacket::write(FileSystem&, Widelands::Game&, Widelands::MapObjectSaver*) game_preload_packet.cc:114
    #1 0x10d052b08 in Widelands::GameSaver::save() game_saver.cc:51

Looks like the emergency save stumbeld over already corrupt data?

It think there is a lot to fix, aynthing more I can reasonably test?