With the release of Windows Phone 8.1, under the Preview for Developers program, we have seen a number of apps surface in the Windows Phone Store focused on creating custom Start Screen backgrounds. Each app seems to follow the same pattern of having a simple interface and plenty of creative styles.
Theme+ is one of the more recent additions to this genre of apps and falls in line with those that have come before. Theme+ has a simple interface that allows you to create custom designs that can add a dash of color to your Windows Phone 8.1 Start Screen.
The interface for Theme+ has a preview of your background image and two colored dots lining up next to it. To change the color pattern, tap on one of the dots to pull up the color palette, which includes forty-one color choices.
Once you have your colors picked, you can side swipe at the preview to change up the design pattern, which has ten options to consider. At the bottom of the screen are two control buttons, one to preview the pattern on a simulated Start Screen and another to save the pattern.
Once saved, you can go into your Windows Phone 8.1 settings under the Start+Theme options and set your Start Screen background image to your Theme+ creation.
Theme+ is another option worth considering to give your Windows Phone 8.1 Start Screen a splash of color. I wouldn't mind seeing additional patterns to choose from other than the diamonds/angles though.
Theme+ is currently a free app but only for a limited time (not sure how long a limited time is) and you can find your copy of Theme+ here in the Windows Phone Store.