Merge pull request microsoft#131887 from microsoft/aeschli/131396

fix for microsoft#131396

Author: aeschli

src/vs/workbench/services/themes/browser/fileIconThemeData.ts

@@ -343,9 +343,9 @@ function _processIconThemeDocument(id: string, iconThemeDocumentLocation: URI, i
 	if (Array.isArray(fonts)) {
 		fonts.forEach(font => {
 			let src = font.src.map(l => `${asCSSUrl(resolvePath(l.path))} format('${l.format}')`).join(', ');
-			cssRules.push(`@font-face { src: ${src}; font-family: '${font.id}'; font-weight: ${font.weight}; font-style: ${font.style}; }`);
+			cssRules.push(`@font-face { src: ${src}; font-family: '${font.id}'; font-weight: ${font.weight}; font-style: ${font.style}; font-display: block; }`);
 		});
-		cssRules.push(`.show-file-icons .file-icon::before, .show-file-icons .folder-icon::before, .show-file-icons .rootfolder-icon::before { font-family: '${fonts[0].id}'; font-size: ${fonts[0].size || '150%'}; font-display: block; }`);
+		cssRules.push(`.show-file-icons .file-icon::before, .show-file-icons .folder-icon::before, .show-file-icons .rootfolder-icon::before { font-family: '${fonts[0].id}'; font-size: ${fonts[0].size || '150%'}; }`);
 	}
 
 	for (let defId in selectorByDefinitionId) {