I know this is small fry in the context of AGS development, but using a crosshair image imported from PNG doesn't seem to work.
It's been posted about before and was 'fixed' by using a gif instead. But for nice anti-aliasing the only option is to add the crosshair into the cursor image for every item. Which is a bit cumbersome.
Yeah, that's the only solution to add it to every inventory image if you want a crosshair with alpha channels. Or use Calin's alpha blending plugin to merge the crosshair sprite with the inventory sprite for use as the cursor.