Change color for color blind

[Oodnadatta]

[Oodnadatta]

You can use Microsoft colors

[Oodnadatta]

http://colororacle.org/resources/2007_JennyKelso_DesigningMapsForTheColourVisionImpaired.pdf

[natir]

May be use different shape is better for support more visual disability.

[dridk]

Let's add Qt accessibility : http://doc.qt.io/qt-5/accessible.html Contrast, text to speech etc ...

[natir]

Wheel we can set the line pattern, in plain, dot, dash, dot dot dash . But we can't change the patern in the legend. It's a QtCharts limitations.