When I upgraded to 13.04, three icons caught my eye immediately -- Software Centre, new Ubuntu logo (applications menu), and File Manager. Soon I saw the Software Updater icon too. So, I want to see the list of programs used in the creation process. Is it Inkscape or something else?
you can use coral draw, for logo design.
Inkscape can certainly make logos like those. Paths and gradients and maybe a filter or two. I learned most from this guide.
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