Sorry to have bothered. I checked the output of "defaults read com.macromates.textmate" and seen the entry for "OakThemeManagerDeletedThemes" Then, "defaults delete com.macromates.textmate OakThemeManagerDeletedThemes" did the trick. Solved. <div class="gmail_quote">On 5 May 2010 16:21, Ozgur Akgun <<a href="mailto:ozgurakgun@gmail.com">ozgurakgun@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> Hi, I've just - mistakenly- deleted the blackboard theme. I tried re-installing the Textmate but no help. How do I recover the theme? Best, Ozgur Akgun </blockquote></div> -- Ozgur Akgun