TOMBO 2.0 alpha 4 released for testing.
release

<p>
TOMBO 2.0 alpha 4 has been released.
</p>
<p>
2.0 alpha is for testing version. Use 1.x for normal use.
</p>
<p>
Remain feature 2.0a4 has not supported:
</p>

<ul>
<li>Word wrapping</li>
<li>Context menu(Right click menu)</li>
<li>View mode</li>
</ul>

