Inside Macintosh: Mac OS 8 Toolbox Reference /

Chapter 4 - Dialog Manager Reference / Dialog Manager Resources

The Alert Color Table Resource

NOT RECOMMENDED WITH THE APPEARANCE MANAGER

When the Appearance Manager is available and the kAlertFlagsUseThemeBackground feature bit of the extended alert resource is set, the entire alert color table resource ('actb') is ignored. If the Appearance Manager is available, but the kAlertFlagsUseThemeBackground bit is not set, the wContent field of the 'actb' resource is used, but all other fields are still ignored.