* Vector Objects
  * Fill - Variable Opacity
    * Solid Color
      * Includes instanced color definitions
    * Gradients - Linear and Radial (include opacity stops)
  * Stroke - Variable Opacity
    * Solid Color
    * Gradients - Linear and Radial (include opacity stops)
    * Customizable Dashes
    * Miter, Cap, and Join styles
    * Scalable and non-scaling
  * Animated Paths (interpolated paths must have same # of commands)
  * Open and Closed paths
  * Primitives
    * Rect, Circle, Ellipse, Line, Polyline, Polygon
    * Paths - Straight and Curved Lines
      * Cubic Bezier (2 control points per segment)
      * Quadratic Bezier (1 control point per segment)
* Viewport Fill - Solid Color, Variable Opacity
* Text
  * Font glyph embedding
  * Per-glyph styling (tspan)
  * Horizontal writing only (no vertical chinese)
  * Bidirectional text supported
  * Wrapping in a rectangular region (textArea)
  * Editable Text
* Replaced Content
  * Raster Objects (PNG and JPG)
    * Variable Opacity
    * 2D Affine Transformations
  * Video
* Library Objects and Referenced Instances
* Runtime object discard (based on time or events)
* Non-script animation (SMIL)
  * Arbitrary value animation, using arbitrary Paths
  * Motion along Path with customizable rotation
  * Color interpolation animation
  * Animated transforms
* Painters model
* Cumulative Opacity
* Scriptable
  * No spec-required language
* Title and descriptions per object
* Component-wise 2D Transformations (e.g. "rotate translate rotate scale translate")
  * Constrained Transformations (icon stays same size during zoom in)
* Switch content based on language/other
* Prefetch assets hint
* CSS style attributes (optional per SVG spec)
  * Parent/child inheritance
* Interactivity
  * Mouse events, keyboard events, progress events, zoom events, animation events
  * UI (focus) events
    * Elements specifically marked as 'focusable'
    * Focus and navigation order/direction (tab and 8-point directional)
    * Viewport scrolling based on focus
    * Focus highlighting
* Hyperlinks
  * In-document and out-of-document links