Looking through the new version of firmware I have created the extensions for LCD class for drawing line on the EV3 screen.
The sources & short example can be found here: https://github.com/vladru/MonoBrickLcdExt
I am glad to do my small contribution to this nice project.
I will try to implement (port from the NXtpandedLib) new extensions (DrawCircle, DrawCircleFilled, DrawEllipse etc.) for complete MonoC# HW benchmark test but not sure that be in time at this weekend.
I have done new extensions for Lcd:
DrawCircle, DrawCircleFilled, DrawEllipse, DrawEllipseFilled, DrawRectangle
and make some improvements that allow to draw a figure even if its part is finding out of LCD.
The changes to the demo have been also added for show new features.