R508 - Missing toolbar image/reversed column header sort

[H.Seldon]

The previews keep looking better, and better! I've noticed a couple of things. One, with large icons selected for Standard Toolbar, there is no image for Filter button. Two, sorting by column header appears to be backwards with respect to the arrow on the header button. When the arrow points up (ascending), the sort is descending.

Thanks for all your hard work!