Chain drama: fee tiers, congestion, mempool drops, address poisoning, clipboard hijack, phishing; selected-button style

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

art/sprites.py

@@ -681,10 +681,23 @@ def rounded(size, r, fill, light=None, dark=None):
     return c
 
 
+def hw_selected():
+    """PLEDGER 屏上选中的按钮（16×16，九宫格边 5）：墨水屏白底、1 像素黑框，四角向外加粗的取景框角标（准星）。"""
+    c = Canvas(16, 16)
+    c.rect(0, 0, 15, 15, 'P')
+    for i in range(16):
+        c.put(i, 1, 'n'); c.put(i, 14, 'n'); c.put(1, i, 'n'); c.put(14, i, 'n')
+    for (x, y, dx, dy) in ((0, 0, 1, 1), (15, 0, -1, 1), (0, 15, 1, -1), (15, 15, -1, -1)):
+        for k in range(4):
+            c.put(x + dx * k, y, 'n'); c.put(x, y + dy * k, 'n')
+    return c
+
+
 UI_ICONS = {'ui_bank': ui_bank, 'ui_poinbase': ui_poinbase, 'ui_web3': ui_web3}
 UI_ICONS['ui_hw_shell'] = lambda: rounded(32, 7, 'K', 'E', 'z')
 UI_ICONS['ui_hw_bezel'] = lambda: rounded(16, 4, 'n')
 UI_ICONS['ui_hw_paper'] = lambda: rounded(12, 2, 'P')
+UI_ICONS['ui_hw_sel'] = hw_selected
 UI_ICONS['ui_hw_ok'] = lambda: hw_button('ok')
 UI_ICONS['ui_hw_no'] = lambda: hw_button('no')