public void setScrollFraction(float fraction) {
		component.setHiddenViewAmount(fraction);
		component.invalidate();
		Container parent = component.getParent();
		if (parent != null) {
			Container grandParent = parent.getParent();
			if (grandParent != null) {
				grandParent.validate();
			}
		}
	}
sets the background of the component being managed by this info.  It is used by the animation 
framework.
@param c the color
Ghidra/Framework/Project/src/main/java/ghidra/framework/task/gui/taskview/AbstractTaskInfo.java