The answer does depend a little however the answer is yes to using Gallery2 Templates..
A) Sidebar, and blog images then the output via an internal template within the WPG2 plugin.
B) Output in the WPG2 Page then that content is directly controlled by the Gallery2 Smarty template, thus dependant on your Gallery2 theme..
Posts: 1378
The answer does depend a little however the answer is yes to using Gallery2 Templates..
A) Sidebar, and blog images then the output via an internal template within the WPG2 plugin.
B) Output in the WPG2 Page then that content is directly controlled by the Gallery2 Smarty template, thus dependant on your Gallery2 theme..
Hope this helps..
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Wordpress / Gallery2 (WPG2) Plugin, , WPG2 Documentation, WPG2 Demo