further separation of tabs

src/components/settings_modal/tabs/appearance_tab.scss

@@ -5,23 +5,18 @@
     margin: 1em;
   }
 
-  .setting-item {
-    padding-bottom: 0;
-
-    &.heading {
-      display: grid;
-      align-items: baseline;
-      grid-template-columns: 1fr auto auto auto;
-      grid-gap: 0.5em;
-
-      h2 {
-        flex: 1 0 auto;
-      }
-    }
+  .theme-name {
+    font-weight: 900;
+    padding-bottom: 0.5em;
   }
 
   h4 {
-    margin: 0.5em 0;
+    margin: 2em 0;
+    line-height: 1.5;
+  }
+
+  h5 {
+    display: block;
   }
 
   input[type="file"] {
@@ -71,6 +66,7 @@
     border-radius: var(--roundness);
     border: 1px solid var(--border);
     margin: -0.5em;
+    margin-top: 0;
   }
 
   .palettes {
@@ -80,9 +76,9 @@
     padding: 0.5em;
     width: 100%;
 
-    h4 {
-      margin: 0;
+    h5 {
       grid-column: 1 / span 2;
+      margin-bottom: 0;
     }
   }