Follow up tweaking of admin UI changes part 2 (#31268)

app/javascript/styles/mastodon-light/diff.scss

@@ -496,11 +496,11 @@ html {
 
 .compose-form .autosuggest-textarea__textarea,
 .compose-form__highlightable,
+.autosuggest-textarea__suggestions,
 .search__input,
 .search__popout,
 .emoji-mart-search input,
 .language-dropdown__dropdown .emoji-mart-search input,
-// .strike-card,
 .poll__option input[type='text'] {
   background: darken($ui-base-color, 10%);
 }

app/javascript/styles/mastodon/_mixins.scss

@@ -7,7 +7,7 @@
   background: $ui-base-color;
   color: $darker-text-color;
   border-radius: 4px;
-  border: 1px solid lighten($ui-base-color, 8%);
+  border: 1px solid var(--background-border-color);
   font-size: 17px;
   line-height: normal;
   margin: 0;

app/javascript/styles/mastodon/components.scss

@@ -403,7 +403,7 @@ body > [data-popper-placement] {
   &__suggestions {
     box-shadow: var(--dropdown-shadow);
     background: $ui-base-color;
-    border: 1px solid lighten($ui-base-color, 14%);
+    border: 1px solid var(--background-border-color);
     border-radius: 0 0 4px 4px;
     color: $secondary-text-color;
     font-size: 14px;

app/javascript/styles/mastodon/forms.scss

@@ -441,11 +441,6 @@ code {
     border-radius: 4px;
     padding: 10px 16px;
 
-    &::placeholder {
-      color: $dark-text-color;
-      opacity: 1;
-    }
-
     &:invalid {
       box-shadow: none;
     }
@@ -607,8 +602,7 @@ code {
       inset-inline-end: 3px;
       top: 1px;
       padding: 10px;
-      padding-bottom: 9px;
-      font-size: 16px;
+      font-size: 14px;
       color: $dark-text-color;
       font-family: inherit;
       pointer-events: none;
@@ -626,11 +620,6 @@ code {
         inset-inline-end: 0;
         bottom: 1px;
         width: 5px;
-        background-image: linear-gradient(
-          to right,
-          rgba(darken($ui-base-color, 10%), 0),
-          darken($ui-base-color, 10%)
-        );
       }
     }
   }

app/javascript/styles/mastodon/rtl.scss

@@ -35,16 +35,6 @@ body.rtl {
     direction: rtl;
   }
 
-  .simple_form .label_input__append {
-    &::after {
-      background-image: linear-gradient(
-        to left,
-        rgba(darken($ui-base-color, 10%), 0),
-        darken($ui-base-color, 10%)
-      );
-    }
-  }
-
   .simple_form select {
     background: $ui-base-color
       url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14.933 18.467' height='19.698' width='15.929'><path d='M3.467 14.967l-3.393-3.5H14.86l-3.392 3.5c-1.866 1.925-3.666 3.5-4 3.5-.335 0-2.135-1.575-4-3.5zm.266-11.234L7.467 0 11.2 3.733l3.733 3.734H0l3.733-3.734z' fill='#{hex-color(lighten($ui-base-color, 12%))}'/></svg>")

app/javascript/styles/mastodon/tables.scss

@@ -273,8 +273,8 @@ a.table-action-link {
       }
     }
 
-    &:nth-child(even) {
-      background: var(--background-color);
+    &:last-child {
+      border-radius: 0 0 4px 4px;
     }
 
     &__content {

app/javascript/styles/mastodon/widgets.scss

@@ -217,7 +217,7 @@
       display: flex;
       align-items: center;
       justify-content: space-between;
-      border: 1px solid lighten($ui-base-color, 8%);
+      border: 1px solid var(--background-border-color);
       border-radius: 4px;
       padding: 15px;
       text-decoration: none;