Gnash 0.8.7: dynamic gradient fills
Since SWF6 it has been possible to generate gradient fills dynamically using ActionScript. Version 0.8.7 of Gnash will have support for these gradients.
The attached screenshot shows them working in Gnash, or see the original code and SWF.
SWF8 added more options to gradient fills. Gnash 0.8.7 does not support these, but it would be possible to add some or all of that support. If you are interested in having this functionality, please contact me!