Not able to change plot properties with OpenGL backend

[Sreevis]

Hi,

I was trying to change plot object properties. But it is not changing any parameters other than color.
For example,
ax->rectangle(0, 0, -2, -4)->fill(true).color("red").line_width(10);
Above code will only draw a rectangle with red colour without fill and uses default linewidth. I tried marker properties aswell, both in quit mode and reactive mode. But not getting expected output.
Request to add more examples using opengl backend.

Any help is appreciated.