t1gr0u

The plugin allows to change theme (template) on desired dates. 
If you want a Christmas theme automatically on your blog just for 5 days (or more), the plugin will do it for you.
Just enter a start date, an end date , select times and the theme which you want to use, that’s it.
You can have as many combinations as you wish.
A theme for each seasons, halloween theme, christmas theme… or even a day and night theme…
<h3>Admin Panel</h3>
The admin panel will allow to move re-order your theme changes. 
Just remember that, the top is the lowest and the bottom is the highest level. 
So, if you have a theme change (‘theme1’) set for the 23/07 – 01/08 first and theme change (‘theme2’) for the 24/07 – 26/07, and today’s date is 24/07, 
‘theme2’ will be displayed unless you move down ‘theme1’.”
The rules, which you have created, will stay year on year.

WP Change Template

The plugin allows to change theme (template) on desired dates.

沈唁

「特殊节日使用」在国家公祭日、全国哀悼日时网站增加灰色滤镜
<h3>作者博客</h3>
<a href="https://qq52o.me" title="沈唁志" rel="nofollow ugc">沈唁志</a>

MemorialDay

「特殊节日使用」在国家公祭日、全国哀悼日时网站增加灰色滤镜

WP Change Template vs MemorialDay