,
Sorry for the delay, I sent this to my work email so I could get a screenshot and then lost it in the mix.
Here's what it looks like on our Lightning Page Layouts.
I dug a bit deeper to find out it's a custom Aura Component Bundle Detail, created by our last Admin. Here's the code for it, I hope this helps!
<aura:component implements="flexipage:availableForRecordHome,force:hasRecordId">
<aura:attribute name="message" type="String"/>
<aura:attribute name="backgroundColour" type="String"/>
<div style="{! 'background-color:' + v.backgroundColour }">
<lightning:layout horizontalAlign="space">
<lightning:layoutItem padding="around-small" flexibility="auto">
<lightning:icon class="warning" iconName="utility:warning" alternativeText="Warning!" variant="warning" size="small"/>
<lightning:formattedText value="{!v.message}" />
</lightning:layoutItem>
</lightning:layout >
</div>
</aura:component>
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