3.98/5 (258 votes).
Simple tweak with sliders to adjust dock height, offset of icons inside, and opacity. All devices supported(except floating docks, will add support for them soon). Tested on 9.3.3, 10.0.1 11.1.2 and 11.3.1, 12.0.1 and 12.1.2.
Changed way of doing settings so they update instantly or almost instantly (iOS 10 is instant, higher ones as soon as you rotate device or scroll to next page it updates on 11.3.1). Will be adding other dock-related features to this but for now just wanted it to work better. Plan on adding compatibility for floatydock and similar tweaks, for opacity at least hopefully height as well. Also may add custom image for background.
Updated 100% compatible with iOS 11, still works on iOS 9 and 10.