@Override
	protected boolean isValidTooltipContent(String content) {
		if (content == null || content.length() < HTMLUtilities.HTML.length()) {
			return false;
		}
		return true;
	}
A hover service to show tool tip text for hovering over scalar values.
The tooltip shows the scalar in different bases.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/hover/AbstractScalarOperandHover.java