Space gap rect-annots "between" start-end bars

piker/tsp/_annotate.py

@@ -121,21 +121,24 @@ async def markup_gaps(
         #     iend += margin
         #     istart -= margin
 
-        rect_gap: float = BGM*3/8
         opn: float = row['open'][0]
         cls: float = prev_r['close'][0]
-        ro: tuple[float, float] = (
-            iend + rect_gap + 1,
-            opn,
-        )
+
+        # BGM=0.16 is the normal diff from overlap between bars, SO
+        # just go slightly "in" from that "between them".
+        from_idx: int = BGM - .06  # = .10
+
         lc: tuple[float, float] = (
-            istart - rect_gap, # + 1 ,
+            istart + 1 - from_idx,
             cls,
         )
+        ro: tuple[float, float] = (
+            iend + from_idx,
+            opn,
+        )
 
         diff: float = cls - opn
         sgn: float = copysign(1, diff)
-
         color: str = 'dad_blue'
         # TODO? mks more sense to have up/down coloring?
         # color: str = {