• Customizing the Look of Your RT
• Selecting a Theme
• RT Theme Editor
  • Logo and Colors
  • Basic CSS Customization
• Advanced CSS Customization
  • Additional files
  • Callbacks
• Designing Your Own Theme

Customizing the Look of Your RT

While the default RT color scheme nicely matches the Best Practical colors, you may want to personalize your RT instance to make it better fit with your company colors.

Selecting a Theme

The fundamental look of RT comes from the selected theme. Different RT versions have a default, and the RT admin can set the system-wide theme with the $WebDefaultStylesheet configuration value in the RT_SiteConfig.pm file.

RT 4.0 comes with the following themes:

web2

An approximation of the 3.8 style

aileron

The default layout for RT 4.0

ballard

Theme which doesn't rely on JavaScript for menuing

If you have granted the ModifySelf right to users on your system, they can pick a different theme for themselves by going to Logged in as -> Settings -> Options and selecting a different theme.

RT Theme Editor

RT has some built-in controls to manage the look of the theme you select. To use the Theme Editor, log in as a SuperUser (like root), and navigate to Tools -> Configuration -> Tools -> Theme.

Logo and Colors

From there you can upload a logo and pick colors for the various page sections. RT will automatically pick out the six most frequent primary colors from your logo and offer them as options next to the color wheel. In less than a minute, you can upload a logo and set a few colors.

Until you click "Save", color changes are temporary and are only shown to you. When you find the color scheme you want, click Save to make it the new theme for the entire RT instance. If you ever want to wipe the slate clean, you can use one or both of the "Reset to default" buttons.

Basic CSS Customization

The theme editor lets you do a bit more if you know your way around CSS or have a web designer who does. By writing your own styles in the Custom CSS box, you can quickly customize the RT look and feel pretty extensively. The primary RT elements are stubbed out for you in the edit box.

After making CSS changes, click Try to see how they look, and click Save when you're done.

Advanced CSS Customization

If you're more ambitious and good at CSS, you can go even further and create your own theme. As with all modifications to RT, it's a bad idea to just change the CSS for one of the standard RT themes in place. When you upgrade, if you protect your modifications from being over-written, you may miss out on updates that are required for new features. In the worst case, an upgrade might wipe out all of your changes.

Below are a few approaches to customizing RT's CSS.

Additional files

RT allows you to conveniently include additional CSS files after the default CSS styles, via the @CSSFiles configuration option. To add an extra CSS file, for example my-site.css, create the local overlay directory:

    $ mkdir -p local/html/NoAuth/css/

And place your my-site.css file in it. Finally, adjust your @CSSFiles in your RT_SiteConfig.pm:

    Set( @CSSFiles, ('my-site.css') );

This technique is preferred to callbacks (below) because CSS included via this way will be minified. It is also included across all styles, unlike the callback technique.

If you are writing an extension, see "AddStyleSheets" in RT for how to simply and programmatically add values to @CSSFiles.

Callbacks

RT's CSS files are also Mason templates and the main CSS file, conveniently called main.css, has a Begin and End callback allowing you to inject custom CSS.

To create an End callback, create the callback directory and an End file in that directory:

    $ mkdir -p local/html/Callbacks/MyRT/NoAuth/css/aileron/main.css
    $ touch local/html/Callbacks/MyRT/NoAuth/css/aileron/main.css/End

You can use any name you want for the MyRT directory and the theme directory should correspond with the theme you want to change.

RT will now evaluate the contents of that file after it processes all of the @import statements in main.css.

Designing Your Own Theme

The above approaches work well if you need to change the look of part of RT, but you may want to design your own RT theme and leave the standard RT themes available to users unmodified. In this case, you'll want to create your own CSS directory.

As shown above, the local directory is the place to put local modifications to RT. Run the following commands in your /opt/rt4 directory (or wherever your RT is installed) to get started:

    $ mkdir -p local/html/NoAuth/css/localstyle
    $ cp -R share/html/NoAuth/css/aileron/* local/html/NoAuth/css/localstyle/

You can call your "localstyle" directory whatever you want and you don't have to copy the aileron theme to start from, but it's a good place to start off for RT4.

Now set $WebDefaultStylesheet in RT_SiteConfig.pm to the new directory name you selected, for example:

    Set( $WebDefaultStylesheet, 'localstyle' );

If you restart your RT it should look just the same (assuming you copied your current default theme), but if you go to your Options page you'll see that the system default theme is now your new "localtheme."

If you look at the CSS being loaded, you'll also see that the main css file is now being loaded from your local directory. But you'll also see that files are still being loaded from the main RT css directories as well. Why?

The place to start understanding the loading order of RT's CSS is the main.css file. You'll see it first loads ..base/main.css which are the base styles for RT along with styles for other tools RT uses like jQuery. After loading all of the base styles, main.css then imports a theme-specific version with overrides and new style elements for the selected theme. So as long as you follow the CSS precedence rules and use the correct specificity, you get the last chance to modify things.

You can start modifying things by editing the CSS files in your new localstyle directory. When you upgrade RT, you'll want to look specifically at any changes to the style you started from to see if there are any new styles you want to merge into your new style.