Size of the dock change according to the monitor

[Fatih20]

I have a multi monitor setup (QHD and FHD) powered by my thinkpad x230 that has an HD display. It is annoying that the size of the dock is different realtive to the monitor. My idea is instead of putting the value of the dock as a fixed amount of pixel, we should be able to put the value as a percentage of the monitor resolution. So, the dock at my QHD monitor would have the size x% of 1440, while the dock at my FHD monitor would have the size x% of 1080.