Marcel Taeumel uploaded a new version of Graphics to project The Trunk:
http://source.squeak.org/trunk/Graphics-mt.323.mcz==================== Summary ====================
Name: Graphics-mt.323
Author: mt
Time: 11 February 2016, 12:24:04.921392 pm
UUID: 7d2c92dc-1cce-404a-a3b2-cab38615c286
Ancestors: Graphics-dtl.322
provide BitBlt simulation method for copyBits with alpha channel (rules 30 and 31)
=============== Diff against Graphics-dtl.322 ===============
Item was added:
+ ----- Method: BitBlt>>copyBitsSimulated: (in category 'copying') -----
+ copyBitsSimulated: alpha
+ ^Smalltalk at: #BitBltSimulation ifPresent:[:bb| bb copyBitsFrom: self].!