How to change default shadow color?

[mwenz]

All shadow types here are black.

If you have a lot of stacked objects using shadows and if they are difficult to get to using alt-click, they are also listed in the Layer Gallery and can be selected there.

Alt-click is in XDP down to version 6, which is the oldest version I have (which is when I started with XDP).

[gwpriester]

You can Ctrl click on the shadow and then apply a fill color. You can apply any of the graident fills to a soft shadow as well though in recent versions it is hard to get the fill handles to show.