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Trello: more comfortable board font

Sets a legible system font across the whole board and card windows.

Code to copy

/* Use a comfortable system font across the whole board */
#board,
[data-testid="board-canvas"],
[data-testid="trello-card"],
.card-detail-window {
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif !important;
}

How to use this example

1. Copy the code with the button above.
2. Install JustZix (2 minutes) and open the extension on the target page.
3. Add a new rule matching that page.
4. Paste the code into the rule's CSS panel and save — the effect appears instantly.