This property allows you to set the default brush style when ObjFontLocked is false.
hobj is the ID of the object. You can also specify IEV_NEXT_INSERTED_OBJECT (-1) which refers to the next object to be inserted or IEV_PREVIOUS_INSERTED_OBJECT (-2) for the last object inserted.
Default: bsSolid, which means that when you change the memo background color the characters remain with their unchanged background color.