Since release 2.3.0, it is possible to use template file to render the new login box. The template is set with typoscript and the default one is EXT:newloginbox/res/newloginbox_00.html
These are substituted in all newloginbox item displaying templates.
###ACTION_URI### - URI of the request for the login/logout form
###EXTRA_HIDDEN### - Hook required (additionnal hidden field used by kb_md5fepw extension by Kraft Bernhard)
###ON_SUBMIT### - Hook required (used by kb_md5fepw extension by Kraft Bernhard)
###PREFIXID### - Same as class name ('tx_newloginbox_pi1') usefull to get a unique classname prefix
###REDIRECT_URL### - URL of redirection upon login
###STORAGE_PID### - explicit enough I guess (if not : id of the page where user are stored)
###STATUS_HEADER### - depends of the template
###STATUS_MESSAGE### - depends of the template
###HEADER_VALID### - usefull to define what to show/hide
###MESSAGE_VALID### - usefull to define what to show/hide
###FORGOTP_VALID### - usefull to define what to show/hide
###EMAIL_LABEL### - corresponding to 'your_email'
###FORGOT_PASSWORD### - corresponding to 'forgot_password'
###FORGOT_PASSWORD_BACKTOLOGIN### - corresponding to 'forgot_password_backToLogin'
###FORGOT_PASSWORD_ENTEREMAIL### - corresponding to 'forgot_password_enterEmail'
###LOGIN_LABEL### - corresponding to 'login'
###PASSWORD_LABEL### - corresponding to 'password'
###SEND_PASSWORD### - corresponding to 'send_password'
###USERNAME_LABEL### - corresponding to 'username'