Fix the Preview widget CSS

app/Widgets/Preview/_preview.tpl

@@ -1,6 +1,6 @@
 <ul class="list controls middle">
     <li>
-        <span class="primary icon color transparent active" onclick="history.back()" title="{$c->__('button.close')}">
+        <span class="primary icon active" onclick="history.back()" title="{$c->__('button.close')}">
             <i class="material-symbols">arrow_back</i>
         </span>
     </li>

app/Widgets/Preview/preview.css

@@ -27,7 +27,7 @@
     top: 0;
     left: 0;
     opacity: 0;
-    background-color: #111;
+    background-color: rgb(var(--movim-background));
 }
 
 #preview:not(:empty) {
@@ -49,10 +49,7 @@
 
 #preview .pinfo,
 #preview .buttons {
-    background-color: rgba(var(--movim-gray), 0.4);
     transition: opacity .3s cubic-bezier(.4,0,.2,1);
-    backdrop-filter: blur(0.5rem);
-    box-shadow: var(--elevation-1);
     position: absolute;
 }