I'll keep this idea for when I start working on the online reader again. It's a good one.

Hi,
You have to use Java regular expressions (which are very close to regular expressions used in many other languages).
Here is the detailed definition of regexps in Java : https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html
Here is a tool to easily test your expressions: http://java-regex-tester.appspot.com/

It works much better. :)
I have a small problem with comics having long metadata though:



The default theme just hides overflowing text:



And an idea: since this thread is the place people will come to download your theme, perhaps you could edit the first post (and change its title with the name of the theme) and put the latest download link at the top of the thread.

I did not see the delay in Chrome nor in Firefox (both on Windows 7).
No idea what your problem could be.

When I developped the reverse proxy feature, I tested it with the following Nginx config:

server {
    listen 80;
    location /bbb/ {
        proxy_pass http://10.0.0.51:2202;
        proxy_set_header Host $host;
    }
}

My Ubooquity server was running on "http://10.0.0.51:2202", configured with the reverse proxy string "bbb".
With this configuration, all request made to the Nginx server on port 80 were redirected to Ubooquity.

Let me know if you need more details.

Hidea, the "font" directory in your archive is empty. Is it intentional ?

Scrollbars already appear automatically when the description is too long, but the comic details window is allowed to have a height of up to 900 pixels until they do.

Having a better usability on small screens (especially mobile ones) is something I plan to do. I don"t know exactly when though.
In the meantime you can try the user created themes (see the "theme" section on Ubooquity website), perhaps they will behave better on small screens.