fix delte message overlay size and add subtle function to just compute

color

stylesheets/_session.scss

@@ -463,7 +463,8 @@ label {
 
   .session-button.default.danger {
     display: flex;
-    width: 80px;
+    // width: 80px;
+    margin-right: 0px;
   }
 }
 .message-selection-overlay div[role='button'] {

stylesheets/_session_constants.scss

@@ -151,7 +151,11 @@ $session-font-h4: 16px;
 }
 
 @mixin session-color-subtle($color) {
-  color: rgba($color, 0.6);
+  color: subtle($color);
+}
+
+@function subtle($color) {
+  @return rgba($color, 0.6);
 }
 
 // //////////////////////////////////////////////

stylesheets/_session_theme.scss

@@ -116,7 +116,7 @@
     margin-left: 5px;
     .session-icon.check {
       @include themify($themes) {
-        fill: themed('sentMessageText');
+        fill: subtle(themed('sentMessageText'));
       }
     }
   }