Event Analysis: Added event metrics (per-channel occurrence counts, active time, time shares, occurrence durations, and time to first event) and the Event Comparison plot that draws them, one distribution per channel. Channels merged in the Event Library are measured as one, and each metric can also be picked at a single channel for the scalar plots, including windowed on the Metric Timeline.
Scarf Plot: Hovering an event strip now shows the event’s channel, start, end, and duration (or its moment, for instant markers) instead of the gaze segment behind it.
Event-only Datasets: A Custom CSV event file can now be uploaded on its own; the workspace opens with an Event Comparison plot and gaze analysis stays hidden. Symmetrically, datasets without events no longer offer event metrics or the Event Comparison plot: metrics and plots follow what the data actually contains.
Internals: Reworked legend height calculation, unified figure export internals, and prepared the library for embedding in other apps.
1.9.3
Released on August 11, 2026
Eye-movement Types: Added eye-movement type metrics (per-type counts, time budgets, segment durations, and saccadic latency) and the Eye-movement Comparison plot that draws them, one distribution per type. Types merged in the Eye-movement Type Library are measured as one, and each metric can also be picked at a single type for the scalar plots.
Linked Hovering: Hovering one plot marks the same moment and the same participant in the others, within a stimulus for moments and across stimuli for participants. See Linked Hovering Across Plots.
Scanpath Similarity: The ScanGraph network now follows Doležalová and Popelka (2016): article-scored Needleman-Wunsch, so its threshold is the article’s p, plus a percentage-of-edges reading and clique groups. Levenshtein and Needleman-Wunsch are separate metrics now, each with a collapsed variant.
Selections: The eye-movement type and event libraries ship Just fixations and No events as ordinary selections, replacing the built-in picker options; older workspaces are pointed at them automatically.
Plots: Metric Timeline paints only where its metric actually measured.
Internals: A shared distribution layer behind the comparison plots, unified plot highlight marks, and the workspace canvas behaviours split into their own modules.
1.9.2
Released on July 23, 2026
Merging & Selections: Redesigned the AOI, participant, stimuli, event, and eye-movement type libraries around one shared mechanism: click rows to select them, then merge, split, or save them as a named selection from the tray. Selections are shared across the workspace and replace both per-plot hide toggles and the older participant groups - a plot narrows to a selection, and everything outside it stays counted (e.g. as No AOI). Event and eye-movement type pickers offer a built-in None that turns the layer off (e.g. no event overlay, or a fixations-only Scarf). Workspaces saved with the old hide settings or participant groups open automatically.
Plots: Added the Metric Matrix plot - a participants × stimuli grid showing one scalar metric value per cell, with missing or unusable recordings rendered distinctly for quick data-quality screening. The option to hide No AOI data is now available on Scarf plots as well.
Metrics: Reorganized the Metric Library picker around what each metric measures, with the produced output shape chosen during metric configuration.
Internals: Removed the legacy hide mechanism, pruned dead code and unused exports across plots, modals, and the data layer, and unified shared components.
1.9.1
Released on July 09, 2026
Export: Added batch plot exporting, a new metric export replacing the hardcoded metrics export, an export progress bar, and fixed display names in exports.
Plots: Added insufficient height warnings, refined evolving plots, and made Scarf plot automatically reset its time range to 0 when dragged fully. Fixed syncing edge cases.
UI: Redesigned notifications (toasts) with auto-close indicators. Polished visuals for multi-select, tooltips, context menus, and base layout. Improved default AOI colors and simplified the Metric Library header.
Performance: Refactored plot internals for unified rendering and a slight performance gain.
1.9.0
Released on June 22, 2026
Redesigned Workspace: Select one or more plots to move, resize, or change their stimulus, participant group, and other settings together (selecting elements opens a dedicated pane to configure all parameters at once). Saved workspaces from earlier versions open automatically.
New Visualizations:
Recurrence Plot - N×N matrix revealing temporal self-similarity in a single participant’s fixation sequence.
Scanpath - 2D spatial trajectory overlay plot showing fixation locations, index order, and sequence overlays on the stimulus.
Scanpath Similarity - Pairwise comparison matrix of sequence alignments with graph-based ScanGraph network thresholding.
Metric Timeline - Rolling temporal binned heatmap matrices or line trend overlays tracing scalar metrics.
Metric Correlation - Multi-select correlation heatmaps and Scatter Plot Matrices (SPLOM) with Pearson/Spearman algorithms.
Metrics Library: central DSL engine for configuring, parameterizing, and projecting eye-tracking metrics (dwell time, counts, latency, transitions, RQA, similarity).
Eye-movement Type Library: Customize, rename, and group eye-movement categories (such as fixations, saccades, and unclassified events) using the category customization library.
