<blockquote>
<p>i cannot find where can be that, <a href="https://github.com/codebrainz" class="user-mention">@codebrainz</a> you said that dont be hard.. i'm not expert in GTK but i know something C, some started point?</p>
</blockquote>
<p>I would think you could connect a callback function to the sidebar notebook's <code>page-added</code> signal and in that function, set the tab label's width (as above) for any tabs added. You might need a loop like above for startup because I think the sidebar notebook and a couple of Geany's built-in tabs are done in Glade, so you need to get them fixed up initially, but the <code>page-added</code> signal should do the trick for all plugins or other code adding tabs into the sidebar.</p>

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