Chris Muller uploaded a new version of Tools to project The Trunk:
http://source.squeak.org/trunk/Tools-cmm.807.mcz

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

Name: Tools-cmm.807
Author: cmm
Time: 25 April 2018, 6:49:54.475211 pm
UUID: 81320a56-b7e4-46c2-8ae0-11a660bddf4f
Ancestors: Tools-tpr.806

Adopt #icons accessors contributed by John-Reed Maffeo.

=============== Diff against Tools-tpr.806 ===============

Item was changed:
  ----- Method: ToolIcons class>>icons (in category 'accessing') -----
  icons
  
+ 	^ Icons ifNil: [Icons := Dictionary new]!
- 	^ Icons ifNil: [Icons := IdentityDictionary new]!

Item was changed:
+ (PackageInfo named: 'Tools') postscript: 'ToolIcons classPool
+ 	at: #Icons
+ 	put: ((ToolIcons classPool at: #Icons) as: Dictionary)'!
- (PackageInfo named: 'Tools') postscript: 'Debugger initialize.'!