void setBlinkCursor(Boolean blinkCursor) {
			if (blinkCursor && cursorBlinker == null) {
				cursorBlinker = new CursorBlinker(FieldPanel.this);
			}
			else if (!blinkCursor && cursorBlinker != null) {
				cursorBlinker.dispose();
				cursorBlinker = null;
			}
		}
Checks if the "control" modifier is on and the "shift" modifier is not.
Ghidra/Framework/Docking/src/main/java/docking/widgets/fieldpanel/FieldPanel.java