The marker size in line and spline charts can now be adjusted which increase the abilities to create good designed charts. You can select to use a radius from 1 pixel up to 50 pixels. 

Here we see an example of different marker sizes, to the right the marker radius is set to 4 pixels and to the left the marker radius is set to 8 pixels. The size of the markers is 4 pixels by default.

The control for setting the marker size is located in the Layout tab in the Series panel as shown in the image below. The controls are only displayed when the selected chart type is a line or a spline chart(vertical or horizontal).Here we see the new control for changing marker size in line chart.

Note: It's not possible to define different layout settings (for example markers or line style) per series.