@marek

the data-primary certainly fits my point, but the data-color="red" still bugs me since that's presentational rather than structural. I would rather see things like

<div data-status="error">…</div>
<div data-status="warning">…</div>
<div data-status="info">…</div>
<div data-status="success">…</div>

and then let the CSS decide that error→red, warning→amber, info→blue, and success→green

Otherwise I know m̶a̶n̶a̶g̶e̶r̶s̶ projects where we'd end up with things like

div[data-color="blue"] {
background-color: purple;
}

🤦‍♂️

@keithamus