Localizable category and board names

We recently did a similar customization, here's the code we used for the custom breadcrumb component:

<div class="${page.content.nav.breadcrumb.css}">
	<ul class="lia-list-standard-inline">
	<#list page.content.nav.breadcrumb.crumbs as crumb>
	<#if (crumb_index = 0) && (page.content.nav.breadcrumb.crumbs?size > 1)>
		<li class="lia-breadcrumb-node crumb">		
		<a class="lia-link-navigation crumb-community lia-breadcrumb-community lia-breadcrumb-forum" href="/">${text.format("custom.breadcrumb.title")} </a>
		</li>
		<li class="lia-breadcrumb-seperator crumb-community lia-breadcrumb-community lia-breadcrumb-forum">
			<span class="separator">${page.content.nav.breadcrumb.seperator}</span>
		</li>
	<#elseif (page.content.nav.breadcrumb.crumbs?size > 1)>
		<li class="${crumb.wrapperCss}">
			<#if crumb.isLink>
			<a href="${crumb.url}" class="${crumb.css}">${crumb.text}</a>
			<#else>
			<span>${crumb.text}</span>
			</#if>
		</li>
		<#if crumb_has_next>
		<li class="${crumb.separatorCss}">
			<span class="separator">${page.content.nav.breadcrumb.seperator}</span>
		</li>
		</#if>
	</#if>
	</#list>
	</ul>
</div>

 You can then set the community title for each language by defining "custom.breadcrumb.title"