diff --git a/results/regimes_all_models.png b/results/regimes_all_models.png
index 6135634..de25390 100644
Binary files a/results/regimes_all_models.png and b/results/regimes_all_models.png differ
diff --git a/scripts/fig_regimes.py b/scripts/fig_regimes.py
index 367f556..45f832f 100644
--- a/scripts/fig_regimes.py
+++ b/scripts/fig_regimes.py
@@ -50,6 +50,20 @@ for ax, (title, ptfile, key) in zip(axes, PANELS):
     band = REG.get(key, {}).get("workspace_band")
     if band:
         ax.axvspan(band[0], band[1], color="#2f855a", alpha=0.10)
+        ax.text(sum(band) / 2, 0.51, "workspace", color="#2f855a",
+                fontsize=7, ha="center")
+        # sensor regime: contiguous pre-band region where the sensor
+        # readout dominates (rule reproduces the hand-shaded E2B bands)
+        sens = [i for i, (s, m) in enumerate(zip(sensor, motor))
+                if s > m and s >= 0.05 and i < band[0]]
+        if sens:
+            ax.axvspan(min(sens), max(sens) + 1, color="#2b6cb0", alpha=0.08)
+            ax.text((min(sens) + max(sens) + 1) / 2, 0.51, "sensor",
+                    color="#2b6cb0", fontsize=7, ha="center")
+        if band[1] + 1 < L - 1:
+            ax.axvspan(band[1] + 1, L - 1, color="#c53030", alpha=0.08)
+            ax.text((band[1] + L) / 2, 0.51, "motor", color="#c53030",
+                    fontsize=7, ha="center")
     kv = REG.get(key, {}).get("kv_share_start")
     if isinstance(kv, int):
         ax.axvline(kv, color="#c53030", lw=0.9, ls=":")