Support rendering of radial gradients with the 'fr' attribute. New in SVG 2.

Add some SVG2 text properties to tables.

Add 'transform-box' to CSS properties.

Add a few new properties dealing with text and transforms.

More additions for 'mesh' attributes.

Add 'mesh' and 'hatch' related attributes.

Rename <meshGradient> to <mesh>, <meshRow> to <meshrow>, <meshPatch> to <meshpatch>. Remove experimental smoothing types. Add new smoothing 'type' attribute with bicubic smoothing option. Per SVG WG decission at Sydney 2015 face-to-face meeting.

Basic support for <solidColor> element (rendering only as a paint server).

Basic support for <solidColor> element (rendring only as a paint server).

Allow 'transform' on flowRoot, flowPara, and flowSpan.

Add Inkscape's flowed text elements and "text-align" property. Allow "title" attribute. The "title" attribute is not in the SVG spec but is widely supported by browsers.

Add feMergeNode to "in" list in svgprops. Fix bug in preferences for deleting invalid attributes.

Add possibility to check validity of attributes and usefulness of properties. This code adds the ability to check for every elment in an SVG document if its attributes are valid and the styling properties are useful. Options under the SVG Output section of the Inkscape Preferences dialog control what should be checked when, and what actions should be taken if invalid attributes or non-useful properties are found.