No. The main ArtWorks application does have very comprehensive bitmap export facilities and export of alpha sprites is likely to appear in ArtWorks soon, but I cannot see any point in having it in AWRender. I cannot understand why you think that an AWRender extension would "make ArtWorks quite a powerful tool for producing bitmapped images, too". First of all, by all means, ArtWorks *is* quite a powerful tool for producing bitmapped images, e.g., the complete RISC OS 5 icon set was produced using ArtWorks. Secondly, if you want to produce alpha sprites using ArtWorks, then surely, the logical thing to ask for is alpha sprite export from ArtWorks?