OS: Apple OS X 10.9.4
Inkscape version: v0.48.2
PROBLEM: The drop shadow filter and the inner shadow filter are the 2 most used filters in Inkscape. Yet while the drop shadow filter have his own dialog box to customize the shadow parameters, the Inner shadow filter doesn't display anything, but it just force the user to use a single 45° directed shadow with a fixed lenght. Being the two effects used often together, the user is forced to fix all the dropped shadows to this same direction and lenght, to avoid shadow/illumination inconsistency.
SOLUTION: Inner Shadows should have his own Dialog Box. Inner shadow filter must allow to set shadow offset/direction, transparency and blur parameters like the Drop Shadow fileter does already in his own Dialog Box.
ATTACHMENT: Screenshot of Inkscape shadow filters that illustrates the problem.
The issue is fixed in the trunk, by merging all drop shadow styles (inner, outer, cutout...) in the same dialog.
See attached screen-shot.