Just as you would install plugins, installing themes to Omeka is very similar. Omeka has a few themes installed automatically that you have access to. But there are more themes available at http://omeka.org/add-ons/themes. There is no automatic installer so you would need to upload the theme to your File Manager in cPanel.

Start by finding the the theme you’d like to install. Download the theme by clicking on the red button.

Note that the file should be in .zip format.

Then open your file manager in cPanel.

After, you’ll go to your specific Omeka install. Click on themes.

Click Upload.

You can drag and drop the .zip file into the window or you can click select a file.

Once your file is uploaded to the themes folder you need to go in and extract the files from the .zip folder. Click on the theme file you just uploaded then click on extract.

You’ll need to confirm that you want to extract the files. Click extract files. 

Once the theme is extracted you can delete the .zip file and the theme will now be available for activation within your Omeka administration interface.

1. To get started you’ll need to login to your control panel (https://sites.dtcc.edu/dashboard) using your Delaware Technical Community College username and password.
2. Navigate to the Application section and select Scalar. You can also use the search function as well.
3. When you click on the Scalar icon, you will be taken to the Scalar information page. Click install this application.
4. On the next page, fill in the different fields accordingly:
   -Select the domain or sub-domain where you’d like your Scalar site to live. You can create a sub-domain by following directions in the section Setting up Subdomain. The directory is optional. If you are using a sub-domain, you may not need to use a sub-directory. You can learn more by reading Subdomains vs Subdirectories.
   
   -Under version, select the version that is most recent.
   -By default the installer will automatically backup your website and update it anytime a new version comes out. While we recommend you keep this option, it is possible to only do minor updates, or turn them off completely.
   -The installer will also create a database for you automatically, but if you’ve already created one for this website you can choose Let me manage the database settings and enter the details.
   
   -Finally, in Settings, you’ll need to create a username and password for the Scalar install. A password can be generated for you, but you should try to create your own.
5. Click Install.
6. Once the installer is finished loading, you will be taken to the My Apps section of the dashboard. Here you’ll find links to login to your scalar installation.
   
7. Log into your new Scalar instance with the credentials you set during the install process.
   

The default Mediawiki installed has been customized to make it a bit harder for spammers to overwhelm wikis with illegitimate content and comments. This is done by modifying the LocalSettings.php file (a file that is included in every install in which it is possible to provide configurations details).

By default, Mediawiki allows anonymous users to create pages and edit pages in the wiki. The modifications change this in the following ways:

• Anonymous users cannot edit existing pages
• Anonymous users cannot create pages
• Registered users must click the confirmation link in the registration email in order to edit or create pages

This approach should drastically reduce unsolicited content and comments on Mediawiki installations. One further step that administrator might take is to turn registration off after a predetermined amount of time. Users must create accounts by this date; after that, the settings are changed so that registrations are no longer open.

To add this setting, you must edit LocalSettings.php in your Mediawiki install:

1. Login to cPanel and browse to your File Manager.
   
2. In the File Manager, browse to the folder within public_html that contains your Mediawiki install. If you installed the wiki at the root of your domain, you won’t need to go any further than public_html. If you installed the wiki in a subdomain or subdirectory, you’ll need to find the directory that is associated with that space.
3. Locate LocalSettings.php. Once selecting the file, click download in the top menu bar to download the file as a backup before proceeding. Then click Edit in the top menu bar to edit the file.
   
4.  Confirm that you want to edit the file.
   
5. Browse to the bottom of the document, and locate the custom settings that were added during the Mediawiki install and the following line:

$wgGroupPermissions['*']['createaccount'] = false;

Grav is a content management system (CMS) or, said another way, it’s an application to make websites. But differs from other CMSs like Drupal or WordPress in its underlying technology. While it’s a PHP app like those two, unlike them it does not have a database. All data is written directly to files rather than stored and retrieved from a database. This is known as a flat-file system and it can help with performance given numerous database calls can slow down sites.

Why and when would you use Grav? Grav should maybe be reserved for the technically-savvy user. It’s not that Grav is particularly difficult (every CMS has a learning curve) but rather it gets really interesting when you can integrate it into Github using the Github Sync plugin, which syncs everything on your Grav site to a Github repository for others to contribute to, clone, or fork. Grav also requires a familiarity with Markdown, a lightweight Markup language, so that’s something to be aware of as well.

You can learn more about Grav here.