--- /dev/null
+package org.simantics.ui.workspace.tracker.internal.contributions;
+
+/**
+ * Preference constants for the heap status.
+ *
+ * @author Tuukka Lehtonen
+ * @since 1.31.0
+ */
+public interface IWorkspaceSizeTrackerConstants {
+
+ String P_NODE = "org.simantics.ui.workspace.tracker";
+
+ /**
+ * Boolean preference key for whether or not to show the status bar workspace
+ * size monitor trim.
+ */
+ String PREF_SHOW_MONITOR = "WorkspaceSizeTracker.showMonitor"; //$NON-NLS-1$
+
+ /**
+ * Preference key for the update interval (value in milliseconds).
+ */
+ String PREF_UPDATE_INTERVAL = "WorkspaceSizeTracker.updateInterval"; //$NON-NLS-1$
+
+ /**
+ * Boolean preference key for whether to highlight to the user when low on disk space.
+ */
+ String PREF_HIGHLIGHT_LOW_SPACE = "WorkspaceSizeTracker.highlightLowSpace"; //$NON-NLS-1$
+
+ /**
+ * Preference key for the low space threshold (value in megabytes).
+ */
+ String PREF_LOW_SPACE_THRESHOLD = "WorkspaceSizeTracker.lowSpaceThreshold"; //$NON-NLS-1$
+
+}