Customizing About dialog of RCP applications beyond changing text and image

Is it possible to override the standard AboutD开发者_运维问答ialog provided by RCP?

There are not a lot you can do via customizations - beyond text and image as you mention - so the "easy" solution is to create your own version instead. Depending on the changes you want, this is not all that difficult. If you want to re-use parts of the old dialog - e.g. the feature group list - then you can probably get through via a fragment.