diff --git a/scripts/telegram/lib/tcrb_helpers.php b/scripts/telegram/lib/tcrb_helpers.php
index a2fb7b8..06f7758 100644
--- a/scripts/telegram/lib/tcrb_helpers.php
+++ b/scripts/telegram/lib/tcrb_helpers.php
@@ -164,8 +164,8 @@ function buildTcrbVChartSvg(array $observations, array $latestObservation): stri
     $filterColors = loadFilterColors();
     $vColor = (string) ($filterColors['V'] ?? '#92FF00');
     $vStrokeColor = darkenHexColor($vColor, 0.35);
-    $vHighlightColor = lightenHexColor($vColor, 0.35);
-    $vHighlightStrokeColor = lightenHexColor($vColor, 0.6);
+    $vHighlightColor = '#FF5A5F';
+    $vHighlightStrokeColor = '#FFD6D6';
 
     $width = 1200;
     $height = 700;
@@ -278,10 +278,10 @@ function buildTcrbVChartSvg(array $observations, array $latestObservation): stri
             '<circle cx="%1$.2f" cy="%2$.2f" r="%3$.2f" fill="%4$s" stroke="%5$s" stroke-width="%6$.2f" />',
             $x,
             $y,
-            $isLatest ? 7.0 : 4.2,
+            $isLatest ? 5.8 : 3.0,
             $isLatest ? $vHighlightColor : $vColor,
             $isLatest ? $vHighlightStrokeColor : $vHighlightColor,
-            $isLatest ? 2.6 : 1.4
+            $isLatest ? 2.2 : 1.0
         );
     }