Created attachment 8571894 [details] scaling.png Open url, and hover over the preview-image below the big one. The unselected and unhovered images don't have a black border. When you move the mouse into or out of the image, a transition with transparency starts. During this transition, the previously hq-scaled image is shown with lq-scaling. After the transition ends, the image is again displayed with hq-scaling. The same is happening when moving the mouse over the image, but the transition is set to be shorter, so it's not as obvious. Screenshot: left: before and after the transition right: during the transition Windows 7 Nightly 2015-03-02
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