Lyra - How to Turn Off Shadows (or change their opacity)

To completely turn them off¹:
Under Design > Developer > Custom CSS

.LowerShadow,
.GalleryShadow {
	visibility: hidden;
}

To change their opacity (in this case to 50%)²:
Under Design > Developer > Custom CSS

.LowerShadow,
.GalleryShadow {
	-moz-opacity: 0.5;
	opacity: 0.5;
	-ms-filter:"progid:DXImageTransform.Microsoft.Alpha"(Opacity=50);
}

Note (1) -- do not use display:none -- we use the sizes of the shadows to calculate margins, if you completely turn them off, your site may exhibit erratic behavior.

Note (2) -- the shadows are already transparent PNG's -- any opacity less than 100% on versions less than version 9 of IE will make your shadows look horrendous.  just fair warning.