➕add new theme

lib/theme/terminal_themes.dart

@@ -23,4 +23,26 @@ class TerminalThemes {
     brightMagenta: TerminalColor(0xffd670d6),
     brightCyan: TerminalColor(0xff29b8db),
   );
+
+  static const whiteOnBlack = TerminalTheme(
+    cursor: TerminalColor(0xffaeafad),
+    selection: TerminalColor(0xffffff40),
+    foreground: TerminalColor(0xffffffff),
+    background: TerminalColor(0xff000000),
+    black: TerminalColor(0xff000000),
+    white: TerminalColor(0xffe5e5e5),
+    red: TerminalColor(0xffcd3131),
+    green: TerminalColor(0xff0dbc79),
+    yellow: TerminalColor(0xffe5e510),
+    blue: TerminalColor(0xff2472c8),
+    magenta: TerminalColor(0xffbc3fbc),
+    cyan: TerminalColor(0xff11a8cd),
+    brightBlack: TerminalColor(0xff666666),
+    brightRed: TerminalColor(0xfff14c4c),
+    brightGreen: TerminalColor(0xff23d18b),
+    brightYellow: TerminalColor(0xfff5f543),
+    brightBlue: TerminalColor(0xff3b8eea),
+    brightMagenta: TerminalColor(0xffd670d6),
+    brightCyan: TerminalColor(0xff29b8db),
+  );
 }