Marcel Taeumel uploaded a new version of FFI-Tools to project FFI:
http://source.squeak.org/FFI/FFI-Tools-mt.18.mcz

==================== Summary ====================

Name: FFI-Tools-mt.18
Author: mt
Time: 17 June 2020, 11:49:53.132028 am
UUID: 2fa1e5d5-aca8-a04c-b011-42d77447d585
Ancestors: FFI-Tools-mt.17

Make dynamic icon selection for robust to not break tools. This can happen if an implementor of #fields makes a mistake such as forgetting the "^". :-)

=============== Diff against FFI-Tools-mt.17 ===============

Item was changed:
  ----- Method: ExternalStructure class>>toolIcon (in category '*FFI-Tools') -----
  toolIcon
  
+ 	^ [self isTypeAlias
- 	^ self isTypeAlias
  		ifTrue: [#externalTypeAlias]
+ 		ifFalse: [#externalStructure]]
+ 			ifError: [#blank]!
- 		ifFalse: [#externalStructure]!