It's quite likely one of the first things you will want to do when logging in to your new web site is set the look of the site to your preferences, upload your organization's logo, define your mission statement and that sort of thing. Fortunately, it's quite easy within our Drupal based system.
The original owner of this web site will be automatically set up to have permissions to manage the web site's "theme". By clicking "Administer > Site Building > Themes" you will be brought to a list of available themes you can choose to apply to your web site. Many of the available themes also have additional options within within them to set color schemes, logo's, icons, and more. Not all themes have the same options, however.
Click the radio button in the "default" column of the theme list to select the theme you wish to use and click the "save configuration" button at the bottom of the page to change to the selected theme.
When the page reloads you should see your site in this newly selected theme. At that point, scroll to that theme and click the "configure" link to the right of the radio button and you will be brought to any options available to that theme. This often includes setting color choices, uploading a logo and icon and selecting what information displays and doesn't display. Some themes will have all these options, some will have fewer.
We have a collection of logos available for a few well known organization in our document downloads for those people that may not have their own graphics. If we do not have one for your organization, let us know in the forum, we will certainly add it to the collection.
There are some commonly accepted (or at least acknowledged) best practices in designing a usable, attractive web site. In addition to those best practices, there are also a few guidelines that will help create the most attractive web sites within the Drupal system, as any templated system does have a few limitations.
When choosing colors to use on your web site, understand that it is generally accepted that dark text on a lighter background is easier on the eyes and can promote people actually staying on your site longer and reading more. light text on a dark background increases eye fatigue and usually shortens and stay of many visitors, particularly visitors with eye problems.
A general rule of thumb when working with a logo to upload to your theme is to have the logo a maximum height of about 80 pixels. While you can upload any size image you want, and the theme will generally move to accommodate it, if it's 80 pixels or less, most themes want be pushed out of their optimum most attractive layout.
Some themes work better than other with the site slogan. Some slogans are wrapped under the site name, some are right after the title. So try it and see how your slogan fits in your chosen theme.
We have found the Wabi theme to be the most useful and most flexible and recommend trying it if it suits you.