Graphics/font/platform backends with common interfaces?

[Taylor Hillegeist via Digitalmars-d-learn]

On Wednesday, 23 December 2015 at 21:12:11 UTC, Taylor Hillegeist 
wrote:
> On Wednesday, 23 December 2015 at 21:07:12 UTC, Basile B. wrote:
>> [...]
>
> Thanks for letting me know! So is what your saying is that an 
> common interface is not possible or practical or perhaps useful?

Also wouldn't the least common denominator be
2D FP in Retained Mode?