Remove spaces on bar plot fills

[paschalis-mpeis]

It seems that a white outline is drawn on each bar. Perhaps that is the workaround to enable the rounded corners in the first place (don't know the internals of ggchicklet). I assume this is why the spaces below are shown:

I don't want that white-space between plots of the same x axis element.

I want something likegeom_bar, but rounded:

Is there a way to remove them? If not, is there a way to draw them in the same color as the fill color?

Cheers, Paschalis

[brunomioto]

+1

[mattwarkentin]

@Paschalis geom_chicklet(color = 'transparent') should work.