Flowed text not supported (SVG 1.2). Squiggle does not ignore (as it should)
tags in does not understand and will not render drawings with flowed text.
Opera 8.51 (Supports SVG Tiny specification.)
Patterns not supported.
Text not supported.
Markers not supported.
Dashed lines not supported.
Gradients rendered incorrectly.
Transparency values off.
Included bitmaps not rendered.
Opera 9.20 (Supports SVG 1.1 specification.)
Markers wrong shape, position, and size. Maybe
problem of markers without viewBoxes.
Stroke cap style supported as of 9.1.
Filters supported. Opera requires "filterUnits" to be defined if geometric
parameters are given, Batik doesn't.
Clipping and masking supported.
Text on path with kerning mis-rendered
(see Text examples).
Editors:
Sketsa (Trial version or $49 purchase, download from Kiyut)
Filters supported
Markers displayed but no editing support.
Resources (<defs>) editor.
Custom dashes easily defined.
Overall interface not as well designed as Inkscape's.
Limited export/import support.
Objects/Attributes
Patterns
No support in Firefox 1.5.
Squiggle OK but Batik output not displayed correctly in Evince (one copy of pattern, upside down)
or Acroread 7.0.5 (repeated pattern, upside down).
Markers
Inkscape does not treat viewBox correctly when displaying and does not include
a viewBox when creating markers. It also does not include the attributes markerWidth
and markerHeight. Opera 9 has problems displaying Inkscape
markers.