For example I want to change the :
C:\Users\media\workspace\TESTPROJECT\war\com.media.project.medistart\sc\skins\Enterprise\images\edges
I open them in Paint and draw new one and overwrite the existing.
when i run my application nothing has changed... Someone know how i change the files in the .jar maybe it would work
Override the file stored under war folder of your project.
Clear the browser cache first (Ctrl+Shift+Delete) and run the application.
Here is the structure of war where images are stored one for each skin or theme
war
|__WEB-INF
|__testproject
|__sc
|__skins
|__Enterprise
|__Images
|__edges
|__edge_B.png