I want to try them. Is it possible to use them not instead of current level but additional? I don't have the level pack installed. I have created /home/opt/rovio/angrybirds/data/levels/pack2 directory, placed Through_wall.txt and 3littlepigs.txt in there and renamed them to level34.lua and level52.lua and changed the theme line in the two files from theme1 to theme2 but I cannot find theme2 when I start Angry Birds.
How can I use your custom level as theme2 instead of theme1 levels when I don't have the level pack installed?
Thanks