Comment 3 for bug 1402998

AFAIU to be expected - the bulb uses a feature which doesn't exist in SVG 1.1 (and is thus approximated on import). Import of gradient meshes from PDF in trunk or 0.91pre3 as Inkscape's experimental SVG gradient-mesh feature hasn't been implemented yet.

For a better result (based on current available features in trunk and 0.91): use e.g. 125 as precision for gradient meshes on import, zoom in to the logo and turn off anti-aliasing in the document properties: without the anti-aliasing effect at adjacent edges of the imported mesh patches it looks quite ok (yes, the anti-alias setting will affect other parts of the document, but that's part of the refinement needed for bug #170356 (to allow to apply the setting to a selection instead of the full document)).