Trellis 1.9.0

What's new in 1.9.0

New features

• Trellis Flow in VS Code：a new Trellis icon in the activity bar finds the C4 models and Mermaid sequence diagrams in a folder, and steps through a sequence on top of the C4 diagram. Each message lights up the nodes and relations it uses, with the rest fading out; participants missing from the C4 model are drawn as dashed temporary nodes and messages with no relation as dashed edges, with "did you mean" hints. Trellis Flow is part of the paid license: without one the Trellis view shows a short demo, a link to the website and how to enter a license key.
• Trellis Flow follows your edits：saving the sequence or C4 file keeps you on the same message, pauses playback and asks before reloading, and keeps the last valid version on screen when a file has a syntax error. A reload bar offers Reload and Show changes, new, changed and removed messages are tagged in the sequence, and your zoom level is kept.
• The Trellis sidebar uses native VS Code panes (Source, C4 Model, Sequences, Validation) with collapsible headers, count badges, hover actions and the built-in Ctrl/Cmd+F filter.
• The Flow diagram follows your VS Code theme：trellisFlow.theme picks a light or dark Trellis theme automatically, reuses trellis.theme, or uses a theme you name.
• Highlighted nodes keep their own colour, so a Person and a Container in the same step stay easy to tell apart, on light and dark themes alike.
• Follow step only moves the view when the current step is out of sight, pans the shortest distance, and zooms out when the step does not fit. Dragging or zooming stops the animation.
• The mini sequence diagram shows Mermaid notes on the lifelines, and draws loop, alt, opt, par, critical, break and rect blocks as nested, foldable sections. The step card lists the notes and enclosing blocks of the current step, with links to their source lines.
• Async messages (-) and --)) are drawn as fire-and-forget calls with a hollow arrowhead instead of being treated as returns.
• Participant names stay pinned above the mini sequence diagram while you scroll through the steps.
• The mini sequence diagram font size, font weight and line width are configurable (trellisFlow.sequenceFontSize, sequenceFontWeight, sequenceLineWidth), and lifelines spread over the full column width.
• The Flow details column can be resized by dragging; its width is kept when you switch tabs. The activity bar shows the Trellis logo, which follows your theme. …

Full release notes »