Judging from the screenshot I once again have to say very nice work! I can't wait until I get home so I can try it out. You give a busy developer new energy to continue working on DockbarX despite shrinking a userbase. Thanks!
Man,you are doing great job,don't stop. It would be great if you add support for third party applets,like menu applet or systray applet,then it could replace panels. It is the most themeable dock in linux world,and I have many suggestions for improvements,some of them I noted above,but I have more. One of them is icons,if they can be changed with custom one with diffrent hight and width then it would be perfect dock.
And one thing I forgot,please don't ever stop using pixmaps for theming.I noted many docks,panels,shells wms and gtk engines uses only text options for theming without possibility to use pixmap or they use very poorly. It is wrong,very wrong. You can never have enough options to cover all the possibilities that gives pixmap.