Hi, Sergey
No because, animations will not be supported.
For a GIF with just a single image, it's not a problem for making loader derived from FP-Image, it's easy.
If you want to use TGraphic, actualy, from TGifViewer you can easly extract each frames to TBitmap.
For supporting animations, in all case, i'll must do a special child of TImage, so.
In a near future, i plan to make a Delphi version for VCL and FMX.
Since severals month, i'm working on an alternative to TBitmap. It's totally independant of FPC and Lazarus. Is better, faster, easier and more stable.
I think the bitmap managment of FPC/Lazarus need to be rewriting, because actually it'a have many things that not work correctly.
Best regards