Play flash on swap, drop shadow for text, and show next queued potion (or spell)

[adamblaine]

Hello! I have three feature requests:

• When swapping an item, display highlight/flash (an svg with a glowing border) over that slot.
• Would love an option to add style to text -- drop-shadow in particular.
• Finally, a smaller version of the slot icon (or separate svg), which displays the next item in queue -- specifically for potions/shouts (but could be an option for all slots).

Thanks!