Allow developers to customize FXGL pane rendering color

[chengenzhao]

Please discuss the feature ideas on Gitter first. Then please describe the feature
Allow developers to customize FXGL pane rendering color
Currently the default rendering color is black and no public api to change it
so hope we could have a public api allow developers to change it

More discuss:
#1075

[AlmasB]

pane.setRenderFill( ... ) should do the trick. Let me know if this works, so we can close this.

[chengenzhao]

Good Afternoon @AlmasB
It works
I tried use

fxglPane.setRenderFill(Color.TRANSPARENT);

then the black scene doesn't appear