Index: src/wp-includes/media-template.php
===================================================================
--- src/wp-includes/media-template.php	(revision 56184)
+++ src/wp-includes/media-template.php	(working copy)
@@ -1073,7 +1073,7 @@
 		<?php endif; ?>
 
 		<fieldset class="setting-group">
-			<legend class="name"><?php _e( 'Align' ); ?></legend>
+			<legend class="name"><?php _e( 'Alignment' ); ?></legend>
 			<span class="setting align">
 				<span class="button-group button-large" data-setting="align">
 					<button class="button" value="left">
@@ -1137,7 +1137,7 @@
 
 					<h2><?php _e( 'Display Settings' ); ?></h2>
 					<fieldset class="setting-group">
-						<legend class="legend-inline"><?php _e( 'Align' ); ?></legend>
+						<legend class="legend-inline"><?php _e( 'Alignment' ); ?></legend>
 						<span class="setting align">
 							<span class="button-group button-large" data-setting="align">
 								<button class="button" value="left">
@@ -1486,7 +1486,7 @@
 						<# } ); #>
 					<# } else { #>
 					<span class="name"><?php _e( 'Tracks (subtitles, captions, descriptions, chapters, or metadata)' ); ?></span><br />
-					<em><?php _e( 'There are no associated subtitles.' ); ?></em>
+					<em><?php _e( 'There are no associated tracks.' ); ?></em>
 					<# } #>
 					<textarea class="hidden content-setting">{{ content }}</textarea>
 				</span>
Index: src/wp-includes/media.php
===================================================================
--- src/wp-includes/media.php	(revision 56184)
+++ src/wp-includes/media.php	(working copy)
@@ -3891,6 +3891,7 @@
 	if ( $image instanceof GdImage
 		|| is_resource( $image ) && 'gd' === get_resource_type( $image )
 	) {
+
 		return true;
 	}
 
@@ -4773,7 +4774,7 @@
 		// Gallery.
 		'createGalleryTitle'          => __( 'Create gallery' ),
 		'editGalleryTitle'            => __( 'Edit gallery' ),
-		'cancelGalleryTitle'          => __( '&#8592; Cancel gallery' ),
+		'cancelGalleryTitle'          => __( '&#8592; Cancel edit' ),
 		'insertGallery'               => __( 'Insert gallery' ),
 		'updateGallery'               => __( 'Update gallery' ),
 		'addToGallery'                => __( 'Add to gallery' ),
@@ -4783,7 +4784,7 @@
 		// Edit Image.
 		'imageDetailsTitle'           => __( 'Image details' ),
 		'imageReplaceTitle'           => __( 'Replace image' ),
-		'imageDetailsCancel'          => __( 'Cancel edit' ),
+		'imageDetailsCancel'          => __( '&#8592; Cancel edit' ),
 		'editImage'                   => __( 'Edit image' ),
 
 		// Crop Image.
@@ -4801,13 +4802,13 @@
 		'audioDetailsTitle'           => __( 'Audio details' ),
 		'audioReplaceTitle'           => __( 'Replace audio' ),
 		'audioAddSourceTitle'         => __( 'Add audio source' ),
-		'audioDetailsCancel'          => __( 'Cancel edit' ),
+		'audioDetailsCancel'          => __( '&#8592; Cancel edit' ),
 
 		// Edit Video.
 		'videoDetailsTitle'           => __( 'Video details' ),
 		'videoReplaceTitle'           => __( 'Replace video' ),
 		'videoAddSourceTitle'         => __( 'Add video source' ),
-		'videoDetailsCancel'          => __( 'Cancel edit' ),
+		'videoDetailsCancel'          => __( '&#8592; Cancel edit' ),
 		'videoSelectPosterImageTitle' => __( 'Select poster image' ),
 		'videoAddTrackTitle'          => __( 'Add subtitles' ),
 
@@ -4815,7 +4816,7 @@
 		'playlistDragInfo'            => __( 'Drag and drop to reorder tracks.' ),
 		'createPlaylistTitle'         => __( 'Create audio playlist' ),
 		'editPlaylistTitle'           => __( 'Edit audio playlist' ),
-		'cancelPlaylistTitle'         => __( '&#8592; Cancel audio playlist' ),
+		'cancelPlaylistTitle'         => __( '&#8592; Cancel edit' ),
 		'insertPlaylist'              => __( 'Insert audio playlist' ),
 		'updatePlaylist'              => __( 'Update audio playlist' ),
 		'addToPlaylist'               => __( 'Add to audio playlist' ),
@@ -4825,7 +4826,7 @@
 		'videoPlaylistDragInfo'       => __( 'Drag and drop to reorder videos.' ),
 		'createVideoPlaylistTitle'    => __( 'Create video playlist' ),
 		'editVideoPlaylistTitle'      => __( 'Edit video playlist' ),
-		'cancelVideoPlaylistTitle'    => __( '&#8592; Cancel video playlist' ),
+		'cancelVideoPlaylistTitle'    => __( '&#8592; Cancel edit' ),
 		'insertVideoPlaylist'         => __( 'Insert video playlist' ),
 		'updateVideoPlaylist'         => __( 'Update video playlist' ),
 		'addToVideoPlaylist'          => __( 'Add to video playlist' ),