When extending an app using force:slds
<aura:application extends="force:slds">
<!--component reference>
</aura:application>
This should give me the logo instead of the alt text, is this a right assumption?
<aura:component>
<div class="slds-global-header__logo">
<img src="/assets/images/logo-noname.svg" alt="test" />
</div>
</aura:component>