diff --git a/notes/pics/fencing-token.png b/notes/pics/fencing-token.png
index 9f714c3e..0a8b41f5 100644
Binary files a/notes/pics/fencing-token.png and b/notes/pics/fencing-token.png differ
diff --git a/notes/pics/paxos-example.png b/notes/pics/paxos-example.png
index 3f66cdbf..c56f1235 100644
Binary files a/notes/pics/paxos-example.png and b/notes/pics/paxos-example.png differ
diff --git a/notes/pics/rocketmq-transaction.png b/notes/pics/rocketmq-transaction.png
index 431ac11f..5c2731b8 100644
Binary files a/notes/pics/rocketmq-transaction.png and b/notes/pics/rocketmq-transaction.png differ
diff --git a/notes/pics/saga.png b/notes/pics/saga.png
index 9232b074..71924fab 100644
Binary files a/notes/pics/saga.png and b/notes/pics/saga.png differ
diff --git a/tools/diagram/src/fencing-token.svg b/tools/diagram/src/fencing-token.svg
index d6f2f6fd..589d8d6e 100644
--- a/tools/diagram/src/fencing-token.svg
+++ b/tools/diagram/src/fencing-token.svg
@@ -10,7 +10,7 @@
     .arrow { stroke: #666; stroke-width: 1.3; fill: none; marker-end: url(#a); }
     .reply { stroke-dasharray: 5 4; }
     .lost { stroke: #C0605A; marker-end: url(#x); }
-    .shadow { fill: #C0C0C0; }
+    .shadow { fill: #DADADA; }
   </style>
   <defs>
     <marker id="a" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="7" markerHeight="7" orient="auto">
@@ -26,23 +26,23 @@
   <line x1="230" y1="76" x2="230" y2="428" class="life"/>
   <line x1="370" y1="76" x2="370" y2="428" class="life"/>
   <line x1="510" y1="76" x2="510" y2="428" class="life"/>
-  <rect x="52" y="48" width="82" height="30" rx="6" class="shadow"/>
+  <rect x="51" y="47" width="82" height="30" rx="6" class="shadow"/>
   <rect x="49" y="45" width="82" height="30" rx="6" fill="#B0E3E6"/>
   <text x="90" y="64.5" class="head">客户端 1</text>
-  <rect x="197" y="48" width="72" height="30" rx="6" class="shadow"/>
+  <rect x="196" y="47" width="72" height="30" rx="6" class="shadow"/>
   <rect x="194" y="45" width="72" height="30" rx="6" fill="#B1DDF0"/>
   <text x="230" y="64.5" class="head">锁服务</text>
-  <rect x="332" y="48" width="82" height="30" rx="6" class="shadow"/>
+  <rect x="331" y="47" width="82" height="30" rx="6" class="shadow"/>
   <rect x="329" y="45" width="82" height="30" rx="6" fill="#B0E3E6"/>
   <text x="370" y="64.5" class="head">客户端 2</text>
-  <rect x="477" y="48" width="72" height="30" rx="6" class="shadow"/>
+  <rect x="476" y="47" width="72" height="30" rx="6" class="shadow"/>
   <rect x="474" y="45" width="72" height="30" rx="6" fill="#B1DDF0"/>
   <text x="510" y="64.5" class="head">存储</text>
   <line x1="94" y1="100" x2="226" y2="100" class="arrow"/>
   <text x="160" y="94" class="msg">获取锁</text>
   <line x1="226" y1="134" x2="94" y2="134" class="arrow reply"/>
   <text x="160" y="128" class="msg">成功，令牌 33</text>
-  <rect x="85" y="158" width="10" height="150" fill="#F3D9A4" stroke="#D9B44A"/>
+  <rect x="85" y="158" width="10" height="150" fill="#DDD7F6" stroke="#9188D8"/>
   <text x="102" y="237" class="note"></text>
   <text x="78" y="172" class="note" text-anchor="end">GC 停顿</text>
   <text x="240" y="206" class="note" text-anchor="start">锁过期</text>
diff --git a/tools/diagram/src/paxos-example.svg b/tools/diagram/src/paxos-example.svg
index 28e0bcc7..18892f67 100644
--- a/tools/diagram/src/paxos-example.svg
+++ b/tools/diagram/src/paxos-example.svg
@@ -10,7 +10,7 @@
     .arrow { stroke: #666; stroke-width: 1.3; fill: none; marker-end: url(#a); }
     .reply { stroke-dasharray: 5 4; }
     .lost { stroke: #C0605A; marker-end: url(#x); }
-    .shadow { fill: #C0C0C0; }
+    .shadow { fill: #DADADA; }
   </style>
   <defs>
     <marker id="a" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="7" markerHeight="7" orient="auto">
@@ -27,19 +27,19 @@
   <line x1="320" y1="76" x2="320" y2="572" class="life"/>
   <line x1="448" y1="76" x2="448" y2="572" class="life"/>
   <line x1="576" y1="76" x2="576" y2="572" class="life"/>
-  <rect x="15" y="48" width="104" height="30" rx="6" class="shadow"/>
+  <rect x="14" y="47" width="104" height="30" rx="6" class="shadow"/>
   <rect x="12" y="45" width="104" height="30" rx="6" fill="#B0E3E6"/>
   <text x="64" y="64.5" class="head">Proposer A</text>
-  <rect x="143" y="48" width="104" height="30" rx="6" class="shadow"/>
+  <rect x="142" y="47" width="104" height="30" rx="6" class="shadow"/>
   <rect x="140" y="45" width="104" height="30" rx="6" fill="#B1DDF0"/>
   <text x="192" y="64.5" class="head">Acceptor X</text>
-  <rect x="271" y="48" width="104" height="30" rx="6" class="shadow"/>
+  <rect x="270" y="47" width="104" height="30" rx="6" class="shadow"/>
   <rect x="268" y="45" width="104" height="30" rx="6" fill="#B1DDF0"/>
   <text x="320" y="64.5" class="head">Acceptor Y</text>
-  <rect x="399" y="48" width="104" height="30" rx="6" class="shadow"/>
+  <rect x="398" y="47" width="104" height="30" rx="6" class="shadow"/>
   <rect x="396" y="45" width="104" height="30" rx="6" fill="#B1DDF0"/>
   <text x="448" y="64.5" class="head">Acceptor Z</text>
-  <rect x="527" y="48" width="104" height="30" rx="6" class="shadow"/>
+  <rect x="526" y="47" width="104" height="30" rx="6" class="shadow"/>
   <rect x="524" y="45" width="104" height="30" rx="6" fill="#B0E3E6"/>
   <text x="576" y="64.5" class="head">Proposer B</text>
   <line x1="68" y1="100" x2="188" y2="100" class="arrow"/>
diff --git a/tools/diagram/src/rocketmq-transaction.svg b/tools/diagram/src/rocketmq-transaction.svg
index 49507e99..709ef781 100644
--- a/tools/diagram/src/rocketmq-transaction.svg
+++ b/tools/diagram/src/rocketmq-transaction.svg
@@ -10,7 +10,7 @@
     .arrow { stroke: #666; stroke-width: 1.3; fill: none; marker-end: url(#a); }
     .reply { stroke-dasharray: 5 4; }
     .lost { stroke: #C0605A; marker-end: url(#x); }
-    .shadow { fill: #C0C0C0; }
+    .shadow { fill: #DADADA; }
   </style>
   <defs>
     <marker id="a" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="7" markerHeight="7" orient="auto">
@@ -25,13 +25,13 @@
   <line x1="100" y1="76" x2="100" y2="388" class="life"/>
   <line x1="300" y1="76" x2="300" y2="388" class="life"/>
   <line x1="500" y1="76" x2="500" y2="388" class="life"/>
-  <rect x="67" y="48" width="72" height="30" rx="6" class="shadow"/>
+  <rect x="66" y="47" width="72" height="30" rx="6" class="shadow"/>
   <rect x="64" y="45" width="72" height="30" rx="6" fill="#B0E3E6"/>
   <text x="100" y="64.5" class="head">生产者</text>
-  <rect x="267" y="48" width="72" height="30" rx="6" class="shadow"/>
+  <rect x="266" y="47" width="72" height="30" rx="6" class="shadow"/>
   <rect x="264" y="45" width="72" height="30" rx="6" fill="#B1DDF0"/>
   <text x="300" y="64.5" class="head">Broker</text>
-  <rect x="467" y="48" width="72" height="30" rx="6" class="shadow"/>
+  <rect x="466" y="47" width="72" height="30" rx="6" class="shadow"/>
   <rect x="464" y="45" width="72" height="30" rx="6" fill="#B0E3E6"/>
   <text x="500" y="64.5" class="head">消费者</text>
   <line x1="104" y1="100" x2="296" y2="100" class="arrow"/>
diff --git a/tools/diagram/src/saga.svg b/tools/diagram/src/saga.svg
index b67d36aa..08102a41 100644
--- a/tools/diagram/src/saga.svg
+++ b/tools/diagram/src/saga.svg
@@ -15,7 +15,7 @@
     .dash { stroke-dasharray: 5 4; }
     .line { stroke: #666; stroke-width: 1.3; fill: none; }
     .frame { fill: none; stroke: #999; stroke-width: 1; stroke-dasharray: 4 3; }
-    .shadow { fill: #C0C0C0; }
+    .shadow { fill: #DADADA; }
   </style>
   <defs>
     <marker id="a" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="7" markerHeight="7" orient="auto-start-reverse">
@@ -31,25 +31,25 @@
   <rect width="100%" height="100%" fill="#FFFFFF"/>
 
   <text x="300" y="28" class="title">Saga</text>
-  <rect x="73" y="63" width="110" height="40" rx="6" class="shadow"/>
+  <rect x="72" y="62" width="110" height="40" rx="6" class="shadow"/>
   <rect x="70" y="60" width="110" height="40" rx="6" fill="#B1DDF0"/>
   <text x="125" y="78" class="b c">T1</text>
   <text x="125" y="93" class="sub c">本地事务提交</text>
-  <rect x="233" y="63" width="110" height="40" rx="6" class="shadow"/>
+  <rect x="232" y="62" width="110" height="40" rx="6" class="shadow"/>
   <rect x="230" y="60" width="110" height="40" rx="6" fill="#B1DDF0"/>
   <text x="285" y="78" class="b c">T2</text>
   <text x="285" y="93" class="sub c">本地事务提交</text>
-  <rect x="393" y="63" width="110" height="40" rx="6" class="shadow"/>
+  <rect x="392" y="62" width="110" height="40" rx="6" class="shadow"/>
   <rect x="390" y="60" width="110" height="40" rx="6" fill="#F3C6C2"/>
   <text x="445" y="78" class="b c">T3</text>
   <text x="445" y="93" class="sub c">失败</text>
   <line x1="183" y1="80" x2="227" y2="80" class="arrow "/>
   <line x1="343" y1="80" x2="387" y2="80" class="arrow "/>
-  <rect x="73" y="153" width="110" height="40" rx="6" class="shadow"/>
+  <rect x="72" y="152" width="110" height="40" rx="6" class="shadow"/>
   <rect x="70" y="150" width="110" height="40" rx="6" fill="#B0E3E6"/>
   <text x="125" y="168" class="b c">C1</text>
   <text x="125" y="183" class="sub c">补偿 T1</text>
-  <rect x="233" y="153" width="110" height="40" rx="6" class="shadow"/>
+  <rect x="232" y="152" width="110" height="40" rx="6" class="shadow"/>
   <rect x="230" y="150" width="110" height="40" rx="6" fill="#B0E3E6"/>
   <text x="285" y="168" class="b c">C2</text>
   <text x="285" y="183" class="sub c">补偿 T2</text>