diff --git a/src/constants/toolIcons.ts b/src/constants/toolIcons.ts
index 2b2f76f..dc4352b 100644
--- a/src/constants/toolIcons.ts
+++ b/src/constants/toolIcons.ts
@@ -9,10 +9,10 @@
 export const collapseIconSvg = `
   <span class="tool-collapse-icon">
     <svg class="icon-collapsed" viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg">
-      <path d="M355.05845325 160.07583932c-19.63862503 19.63862503-19.63862503 51.53175211 0 71.17037712L618.05891976 494.24668297c9.74075802 9.74075802 9.74075802 25.76587604 0 35.50663406L355.05845325 792.75378356c-19.63862503 19.63862503-19.63862503 51.53175211 0 71.17037712s51.53175211 19.63862503 71.17037716 0L706.98261396 583.17037714c39.27725009-39.27725009 39.27725009-102.90639522 0-142.18364526L426.22883041 160.07583932c-19.63862503-19.63862503-51.53175211-19.63862503-71.17037716 0z" fill="#007ACC"/>
+      <path d="M355.05845325 160.07583932c-19.63862503 19.63862503-19.63862503 51.53175211 0 71.17037712L618.05891976 494.24668297c9.74075802 9.74075802 9.74075802 25.76587604 0 35.50663406L355.05845325 792.75378356c-19.63862503 19.63862503-19.63862503 51.53175211 0 71.17037712s51.53175211 19.63862503 71.17037716 0L706.98261396 583.17037714c39.27725009-39.27725009 39.27725009-102.90639522 0-142.18364526L426.22883041 160.07583932c-19.63862503-19.63862503-51.53175211-19.63862503-71.17037716 0z" fill="#8a8a8a"/>
     </svg>
     <svg class="icon-expanded" style="display:none;" viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg">
-      <path d="M899.70688 272.92672l-382.19776 373.53472-393.45664-384.512a43.52 43.52 0 0 0-60.52352 0 41.14944 41.14944 0 0 0 0 59.14624l423.72096 414.11584a43.35616 43.35616 0 0 0 60.56448 0l412.4672-403.11296a41.20064 41.20064 0 0 0 11.06432-40.41728 42.3424 42.3424 0 0 0-30.2848-29.58336 43.52 43.52 0 0 0-41.35424 10.84416z m0 0" fill="#007ACC"/>
+      <path d="M899.70688 272.92672l-382.19776 373.53472-393.45664-384.512a43.52 43.52 0 0 0-60.52352 0 41.14944 41.14944 0 0 0 0 59.14624l423.72096 414.11584a43.35616 43.35616 0 0 0 60.56448 0l412.4672-403.11296a41.20064 41.20064 0 0 0 11.06432-40.41728 42.3424 42.3424 0 0 0-30.2848-29.58336 43.52 43.52 0 0 0-41.35424 10.84416z m0 0" fill="#8a8a8a"/>
     </svg>
   </span>
 `;
diff --git a/src/views/messageArea.ts b/src/views/messageArea.ts
index 7746597..ded1e5e 100644
--- a/src/views/messageArea.ts
+++ b/src/views/messageArea.ts
@@ -422,10 +422,6 @@ export function getMessageAreaStyles(): string {
         height: 100%;
         display: block;
       }
-      .tool-collapse-icon svg path {
-        fill: #007ACC !important;
-      }
-      .icon-collapsed svg path,
       .icon-expanded svg path {
         fill: #007ACC !important;
       }