Custom Sidebar Text

[loveweasleys04]

Hi, I searched the tutorials (which are super helpful, btw :) ) but I couldn't find an answer to how I can customize the text on my sidebar. In my last layout style I was able to do that right in "Customize Journal Style", but the options aren't there this time. I would like to label the bars that say "Profile, Latest Month, Tags, Links, and Page Summary".

If someone could help me with this or point me in the right direction that would be great. Thank you!