Inkscape - Tools, Dropper Tool

The Dropper Tool or "pick averaged colors from image" doesn't work the way it's supposed to.
Ignore the tips on that one--online, on screen, within Inkscape, wherever.

Here's how it works in Windows version of Inkscape 0.45:

1. Select the object you want to modify
2. Click on the dropper tool
3. Pick alpha is checked, Set alpha is unchecked, at top screen toolbar (alpha = opacity)
5. DRAG on the color you want.

Alt/Drag gives the inverse color -- kinda weird, I thought, who wants the inverse color and what is it?

"Inverse" is the same thing as creating a negative image in graphic editors.
(Adjust, Color Balance, Negative Image in PSP9)
Get inverse color online here.

How to change stroke color? Didn't figure that out.

References:
Online Manual Dropper Tool

Tools in Inkscape with name and mouse hover popup text:



See Help, Keys and Mouse.