Update svg_event.py

svg_event.py

@@ -234,7 +234,7 @@ def plot_events(ctx, events, title_text: str, canvas_info: CanvasInfo, include_w
             if ENABLE_BATCH_ID:
                 minibatch = str(e["minibatch"])
                 center = (start + end) // 2
-                data_ctx.text(h, center, minibatch, font_scale=0.6, fill='white' if e["chunk"] == 0 else 'black')
+                data_ctx.text(h, center, minibatch, font_scale=0.6, fill='white' if e["chunk"] % 2 == 0 else 'black')
         if ENABLE_BORDER:
             data_ctx.line(h+SPAN_HEIGHT, 0, h+SPAN_HEIGHT+BORDER_SIZE, max_len - 1)