The latest StratSketch update adds a major and frequently requested feature: Slideshows. You can now add slides to your briefing, as well as create copies of existing slides to create alternate strategies. When presentation mode is enabled, all users will follow along with the presenter to each slide.
Another feature is the color reset button, which will reset your custom colors to their defaults:
There have been a few tweaks to the UI layout, as well as many bug fixes. (An important one in particular being that entities do not randomly duplicate anymore.)
If you have any suggestions or comments, check out the StratSketch thread on the World of Tanks forums. Enjoy!