A recent topic give me the idea to make this tutorial- trick
about simulating a gradient around a path using just extensions of inkscape:
[ Direct Link ]
By the way can someone teach me how can I show an svg original here in the forum?... Did I asked this before??
EDIT: Ah!, warning!. While i was doing this tutorial i found some unexpected behaviours (Bugs) when using the Pattern along path extension, like disapearing other objects created or groups (the screenshots, other objects created with the refered extension), mostly when triggering an "undo" command. So, please save always your work.