Card Title without Icon
Plain-text card heading used on /tsdb-status — 'TSDB Head Status', 'Top 10 label names…'. Non-canonical; should migrate to Card Title with Icon.
DO
Migrate each instance to Card Title with Icon and pick a tabler glyph that reflects the content.
DON'T
Use new. Four stacked plain-text cards blur together — add an icon per card.
Design
default
TSDB Head Status
heading/card-title text, no icon.
Component reference (screenshots)

Placeholder screenshots — the audited app is live at prometheus-e83j.onrender.com.
Implementation
<CardTitle>TSDB Head Status</CardTitle> // deprecated — use CardTitle with icon
Layout
| Property | Value |
|---|---|
| font-size | 18px heading/card-title |