The user needs to disable the "select an area" zooming and to keep the "resize the scrollbar" zooming technique.

Every XCategory label needs to be replaced with different icon.

WPF issue with custom tooltips flashing over and over if they are associated with chart items that physically are placed in the lower-right corner of the monitor (i.e. the app window should be maximized to observe the undesirable behavior).

See http://www

Introduce functionality for getting the default colors programatically.

Add support for trendline curves that have the best fit to a series of data points, possibly subject to constraints (e.g. linear / quadratic / cubic fit curves, etc.)

http://en.wikipedia.org/wiki/Curve_fitting

Reproducible only with Visual Studio 2015.

To work this around enable the Managed Compatibility Mode of the VS 2015 debugger. See the attached image (set-use-managed-compatibility-mode.png).

Chart: Allow user styles for interactivity features.

Labels for 0-value data points do not get alternative positions.

Chart: Allow AxisItem2D retemplating.

The RadChart for Silverlight doesn't show the top value of YAxis when Step = 0.2.

Changing IsLogaritmic and AutoRange runtime produces wrong labels. See attached project to reproduce.

RadChart throws LayoutCycle exception when setting RangeStart and RangeEnd in ScrollOnly mode. Depends on the size of the chart. See attached project.

When RadChart is in ControlTemplate, the legend cannot be collapsed

If you set the following style: 
<Style x:Key="XAxisGridLineStyle" TargetType="Line">
    <Setter Property="StrokeThickness" Value="12" />
    <Setter Property="Stroke" Value="Black" />
</Style>

you get grid lines 50% thinner then the desired (6px).

Chart: PlotAreaAxis cannot be altered in non-default layout

Additional axis Title property cannot be set via binding expression in WPF chart.

Data binding with non default layout does not work.

Cannot hide Y axis while leaving striplines visible.

Add loading indicator / IsBusy support for RadChart.

Allow toggling the visibility of a series by clicking an item in the legend.