Pyramid icons are not initialized

[LabordePierre]

This test is not working:

testThemeIcons

	| theme |
	theme := PyramidWorld themeIcons.
	self assert: theme notNil.
	
	self deny: (theme iconNamed: #pin16) isAllWhite.
	self deny: (theme iconNamed: #pin24) isAllWhite.
	self deny: (theme iconNamed: #pin32) isAllWhite.
	
	self deny: (theme iconNamed: #pinPtah16) isAllWhite.
	self deny: (theme iconNamed: #pinPtah24) isAllWhite.
	self deny: (theme iconNamed: #pinPtah32) isAllWhite.
	
	self deny: (theme iconNamed: #logotype512) isAllWhite.
	self deny: (theme iconNamed: #cartouche512) isAllWhite.