I released some filters that allow emulating a very basic chromatic aberration effect. They are available here with some explanations:
<https://inkscape.org/da/~fabien.fellay/%E2%98%85chromatic-aberration-filters>

They come with some animated examples as well:
<https://inkscape.org/en/~fabien.fellay/%E2%98%85chromatic-aberration-rgb-cmy-demo>
<https://inkscape.org/en/~fabien.fellay/%E2%98%85chromatic-aberration-rc-cr-demo>
<https://inkscape.org/en/~fabien.fellay/%E2%98%85chromatic-aberration-with-rotating-figures-demo>

I later noticed that Inkscape already has similar filters available in the menu Filters > Color > Nudge RGB/CMY...

However, the proposed filters here differ slightly regarding the alpha channel management and they do not flood the background with any color. If one just want to apply quickly a basic chromatic aberration effect, I think those filters may come in handy.

In the hope that someone will like them or find them useful.

Best regards,

Fabien