why exclude font and png?

[maxandersen]

I have this error on anything I try:

java.lang.NullPointerException: Cannot invoke "java.net.URL.toString()" because "url" is null
        at java.desktop/sun.awt.SunToolkit.imageCached(SunToolkit.java:865)
        at java.desktop/sun.lwawt.macosx.LWCToolkit.getImage(LWCToolkit.java:621)
        at processing.awt.PSurfaceAWT.setProcessingIcon(PSurfaceAWT.java:565)
        at processing.awt.PSurfaceAWT.initFrame(PSurfaceAWT.java:387)
        at processing.core.PApplet.initSurface(PApplet.java:10225)
        at processing.core.PApplet.runSketch(PApplet.java:10131)
        at processing.core.PApplet.main(PApplet.java:9890)
        at processing.core.PApplet.main(PApplet.java:9862)
        at RuntimeTest.main(RuntimeTest.java:10)

it is due to the /icon/* ad /font/* resources missing.

Any reason why they are explicitly excluded in the pom.xml file ?