diff --git a/theme/ckeditor5-media-embed/mediaembedediting.css b/theme/ckeditor5-media-embed/mediaembedediting.css
index 9982671..1234204 100644
--- a/theme/ckeditor5-media-embed/mediaembedediting.css
+++ b/theme/ckeditor5-media-embed/mediaembedediting.css
@@ -71,7 +71,7 @@
 	}
 
 	&[data-oembed-url*="instagram.com"] .ck-media__placeholder {
-		background: linear-gradient(-135deg,#1400c8,#b900b4,#f50000);
+		background: linear-gradient(-135deg,hsl(246, 100%, 39%),hsl(302, 100%, 36%),hsl(0, 100%, 48%));
 
 		& .ck-media__placeholder__icon {
 			background-image: url(data:image/svg+xml;base64,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);
diff --git a/theme/ckeditor5-table/colorinput.css b/theme/ckeditor5-table/colorinput.css
index ae8e17e..b004cab 100644
--- a/theme/ckeditor5-table/colorinput.css
+++ b/theme/ckeditor5-table/colorinput.css
@@ -51,7 +51,7 @@
 					left: 50%;
 					height: 150%;
 					width: 8%;
-					background: red;
+					background: hsl(0, 100%, 50%);
 					border-radius: 2px;
 					transform: rotate(45deg);
 					transform-origin: 50%;
diff --git a/theme/ckeditor5-table/formrow.css b/theme/ckeditor5-table/formrow.css
index a57cb47..aae101c 100644
--- a/theme/ckeditor5-table/formrow.css
+++ b/theme/ckeditor5-table/formrow.css
@@ -3,7 +3,7 @@
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
  */
 
- @import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";
+@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";
 
 .ck.ck-form__row {
 	padding: var(--ck-spacing-standard) var(--ck-spacing-large) 0;
diff --git a/theme/ckeditor5-ui/components/dropdown/dropdown.css b/theme/ckeditor5-ui/components/dropdown/dropdown.css
index 8dd68a0..bc8952e 100644
--- a/theme/ckeditor5-ui/components/dropdown/dropdown.css
+++ b/theme/ckeditor5-ui/components/dropdown/dropdown.css
@@ -17,7 +17,7 @@
 	font-size: inherit;
 
 	& .ck-dropdown__arrow {
-	width: var(--ck-dropdown-arrow-size);
+		width: var(--ck-dropdown-arrow-size);
 	}
 
 	@mixin ck-dir ltr {
diff --git a/theme/ckeditor5-ui/components/icon/icon.css b/theme/ckeditor5-ui/components/icon/icon.css
index 0425e16..0494f40 100644
--- a/theme/ckeditor5-ui/components/icon/icon.css
+++ b/theme/ckeditor5-ui/components/icon/icon.css
@@ -30,8 +30,8 @@
 		color: inherit;
 
 		&:not([fill]) {
-				/* Needed by FF. */
-				fill: currentColor;
+			/* Needed by FF. */
+			fill: currentColor;
 		}
 	}
 }