[gnome-icon-theme] Added some basic instruction about shadows, stolen from a jimmac's blip on wave, thanks pal, hope yo

[Lapo Calamandrei <lapo src gnome org>]

commit 53433a3a4fade090dc792d88d248c02b11d28bce
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Thu Feb 25 01:06:57 2010 +0100

    Added some basic instruction about shadows, stolen from a jimmac's blip on wave, thanks pal, hope you don't mind.

 README |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/README b/README
index fe7e56b..2054eca 100644
--- a/README
+++ b/README
@@ -26,7 +26,7 @@ Due to the large canvas a lot of the guidelines discussed elsewhere in this docu
 
 FIXME: outlines (strokes alternative - wip)
 FIXME: highlights (inner stroke alternative)
-FIXME: shadows
+FIXME: shadows (wip)
 
 Inkscape workflow tips:
 -----------------------
@@ -35,4 +35,6 @@ Inkscape workflow tips:
 
 * Text: the best trick we found (atm) for text in high resolution icons is to use the text tool to write something (lorem ipsum, funny things, nonsenses and so on:-)) using the Bitstream Vera Sans typeface with a 6pt size, trying to have the main bodies of the letters between two horizontal major grid lines, then we convert the text object to path and simplify (ctrl+l) 3 times. In case the text is not visible enough when scaling down overlaying the line with a very subtle rectangle 4px tall will help (see text-x-generic).
 
-* Outlines: To make the things stand out we darken the edges using various tecniques. Lapo's favourite is to group the all objects costituting the shape; copy, paste in place, ungroup and make the boolean union to obtain the silouhette  [ctrl+c, crtl+alt+v, ctrl+u, ctrl++]; copy again; set this path fill to none, set the stroke to from 0.5 to 2 pixels in a dark color (usaully black) and set blur from 1 to 2 points; group it with the previous group; paste in place and select the new group and the pasted path apply a clipping mask (the pasted path will be used as a clipping mask) [Object -> Clip -> Set]. Now you can edit do group editing with the clipping mask in place [ctrl+enter to "enter" the group]. You can play with various stroke width and color or gradients and with different blur settings.
+* Outlines: to make the things stand out we darken the edges using various tecniques. Lapo's favourite is to group the all objects costituting the shape; copy, paste in place, ungroup and make the boolean union to obtain the silouhette  [ctrl+c, crtl+alt+v, ctrl+u, ctrl++]; copy again; set this path fill to none, set the stroke from 0.5 to 2 pixels in a dark color (usaully black) and set blur from 1 to 2 points; group it with the previous group; paste in place and select the new group and the pasted path apply a clipping mask (the pasted path will be used as a clipping mask) [Object -> Clip -> Set]. Now you can do group editing with the clipping mask in place [ctrl+enter to "enter" the group]. You can play with various stroke width and color or gradients and with different blur settings.
+
+* Shadows: there's usually two shadow objects, one darker, less blurred, less offset. The other very fuzzy, very transparent. So you get a nice soft, non-linear falloff.