fix: set default size to 120x60

ts/index.html

@@ -555,9 +555,9 @@
 
   <div id="main">
     <div id="left">
-      <span class="pv-label">preview · 160 × 80</span>
+      <span class="pv-label">preview · 120 × 60</span>
       <div id="display-box">
-        <canvas id="canvas_root" width="160" height="80"></canvas>
+        <canvas id="canvas_root" width="120" height="60"></canvas>
       </div>
       <span class="pv-label">demos</span>
       <div id="demo-btns"></div>
@@ -604,7 +604,7 @@
 
   <script src="./public/mono-display.js"></script>
   <script>
-    const W = 160, H = 80;
+    const W = 120, H = 60;
     let sections = [];
     let activeSec = null, activeEl = null;
     let secCounter = 0, elCounter = 0;

ts/src/driver.ts

@@ -16,9 +16,9 @@ export interface MonoDisplayDriverOptions {
    * Keep at 1 and use CSS to stretch for crisp upscaling.
    */
   scale?: number;
-  /** Default display width for elements without inherent size. Default 160. */
+  /** Default display width for elements without inherent size. Default 120. */
   displayWidth?: number;
-  /** Default display height. Default 80. */
+  /** Default display height. Default 60. */
   displayHeight?: number;
   /**
    * Render rate in ticks per second. All animations and scrolls are driven by this.
@@ -67,8 +67,8 @@ export class MonoDisplayDriver {
       onColor: options.onColor ?? "#ffffff",
       offColor: options.offColor ?? "#000000",
       scale: options.scale ?? 1,
-      displayWidth:  options.displayWidth  ?? 160,
+      displayWidth: options.displayWidth ?? 120,
-      displayHeight: options.displayHeight ?? 80,
+      displayHeight: options.displayHeight ?? 60,
       fps: options.fps ?? 25,
       loop: options.loop ?? true,
       onError: options.onError ?? ((e: Error) => { throw e; }),