Update xterm typings

src/typings/vscode-xterm.d.ts

@@ -71,6 +71,24 @@ declare module 'vscode-xterm' {
 		 */
 		enableBold?: boolean;
 
+		/**
+		 * What character atlas implementation to use. The character atlas caches drawn characters,
+		 * speeding up rendering significantly. However, it can introduce some minor rendering
+		 * artifacts.
+		 *
+		 * - 'none': Don't use an atlas.
+		 * - 'static': Generate an atlas when the terminal starts or is reconfigured. This atlas will
+		 *   only contain ASCII characters in 16 colors.
+		 * - 'dynamic': Generate an atlas using a LRU cache as characters are requested. Limited to
+		 *   ASCII characters (for now), but supports 256 colors. For characters covered by the static
+		 *   cache, it's slightly slower in comparison, since there's more overhead involved in
+		 *   managing the cache.
+		 *
+		 * Currently defaults to 'static'. This option may be removed in the future. If it is, passed
+		 * parameters will be ignored.
+		 */
+		experimentalCharAtlas?: 'none' | 'static' | 'dynamic';
+
 		/**
 		 * The font size used to render text.
 		 */