public synchronized void setProgress(int progressPercentage) {
		progress = progressPercentage;
		if (!isTimerRunning) {
			updateTimer.start();
			isTimerRunning = true;
		}
	}
Fills in the progress bar to the indicated percent.
@param progressPercentage total percent of the progress bar that should be filled in.
Ghidra/Features/Base/src/main/java/ghidra/app/merge/PhaseProgressPanel.java