Many functions and methods in pyqtgraph accept arguments specifying the line style (pen), fill style (brush), or color.
For these function arguments, the following values may be used:
Notably, more complex pens and brushes can be easily built using the mkPen() / mkBrush() functions or with Qt’s QPen and QBrush classes.
Colors can also be built using mkColor(), intColor(), hsvColor(), or Qt’s QColor class