[xfce] XFCE panel icon sizes

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http://ubuntuforums.org – Hello Take a loot at the image of my panel in XFCE 4.10. As you can see the icons of the quick launch (marked orange) and the icons of the opened applications (marked green) have some incorrect and painful sizes for my eyes. Is there a way to adjust them so they look like the one that are at the very top of the panel (which is the app menu panel applet, btw)? (Hardware)