So I try to edit the theme and set the theme code to "basic" it throws errors because it exists. So I manually delete "basic folder" and then I get:
rename(C:/wamp/www/lsdev/themes/imported_theme,C:/wamp/www/lsdev/themes/basic) [function.rename]: The system cannot find the file specified. (code: 2)
I get stuck in an endless loop because the imported theme didnt correctly import all the theme files to themes/imported_theme but rather themes/basic.