Customizing form markup / appearance

[#1]

This is for all forms, e.g. user registration.

I want to make the default tooltips appear instead as <input> placeholders, and I want to change the placement of the validation error messages.

I'm pretty new to drupal. Could someone give me a general pointer to where to start? I think I need to edit some function inside tempate.php, or in the logintoboggan module, or in the email_registration module which I installed.

I'm using a child theme based off apigee responsive.

[#2]

I think I got the hang of it. It's a matter of searching through the project codebase for the string you want to change, and eventually finding it in some form config file. And to make the tooltips go away I just make those strings empty.

An example: http://stackoverflow.com/questions/9830736/how-to-set-a-placeholder-in-drupal-7-on-a-login-form

[anilsr]

@Josh Peterson , Thank you for sharing with the community. Just FYI, Remember all customizations should be done inside sites/all folder. Never ever hack any core drupal / apigee distro code. All code changes should be inside sites/all folder.