
A simple way to adjust or tweak a theme to your liking can be as simple as a few lines of css code in styles.css. I made a couple very minor changes to achieve the affect of a new background color, content on the right when it was always on the left, and a font color change to go along with the background better. This is what it looked like:
/* I replace the Standard body formatting:
body {
background-color: #F1F1F1;
color: #444444;
font-family: Verdana;
font-size: 11px;
margin: 0 auto;
width: 980px;
position: relative;
}*/
/* With the following: */
body {
background-color: #6699FF;
color: #444444;
font-family: Verdana;
font-size: 11px;
margin: 0 auto;
width: 980px;
position: relative;
}
/* I replaced these lines:
#content {
float: left;
width: 70%;
}
#sidepanel {
float: right;
width: 28%;
}
With this... */
#content {
float: right;
width: 70%;
}
#sidepanel {
float: left;
width: 28%;
}
/* I replaced these lines:
#header span { font-weight: normal; letter-spacing: 4px;
color: silver; margin: 0px; }
#header a { text-decoration: none; color: white; }
With this...*/
#header span { font-weight: normal; letter-spacing: 4px;
color: #0000CC; margin: 0px; }
#header a { text-decoration: none; color: #0000CC; }
Then there was the slight issue with the Date Time format on the Blog post. This is an example of a minor inconvenience and a quick and dirty solution. I'll describe an alternative approach later.

Notice the formatting for June 29, 2008. This date can probably be localized, but today it's hard coded in PostView.aspx.
![clip_image001[11]](/image.axd?picture=WindowsLiveWriter/SoyouwantanewBlogEngine.NETTheme_125DB/clip_image001%5B11%5D_thumb.png)
Note: I changed
<%=Post.DateCreated.ToString("d. MMMM yyyy HH:mm") %>
To...
<%=Post.DateCreated.ToString("dddd, MMMM dd, yyyy hh:mm tt") %>
To get the following results:

Yeah, I know this wasn't earth shattering. But the premise is simple. If there's a theme you want to use, except for a couple small items, change them. The next step from here is to create a BlogEngine.NET theme for version 1.4.5, using an open source. The Widget Zone needs a little tweaking on some of the older 1.2 and 1.3 themes, but we've already done that once (It's just about time for a new theme and BlogEngine.NET 1.4). I hope everyone tries that once so we can have a few more themes right away.
Here's the new theme. I'll call it nonStandard since I'm not a marketing guy: nonStandard.zip (6.28 kb) . Enjoy!!!