Singed Toxic Trial

One thing that can be quite annoying for any singed player farming with q is placing a cloud of poison on top of a creep or trying to trade with the enemy is that even though it appears that the target is affected by the trail, but in reality their not.

How about giving Singed's Toxic Trail a shadow? It would make it easier for singed to confirm where exactly the trial is and whether its's touching the enemy.