@fastmail@mastodon.social I only wish I were able to add CSS snippets to the standalone Fastmail application the same way I do on the web (e.g., highlighting GitHub issue links in notifications emails so I can quickly find them when triaging, limiting max-width on very wide corporate blurbs, and enforcing a minimal font-size). I know it may be an unpopular request, potentially unsafe, but please consider it for the app too.