By using the version of Geshi found at https://github.com/easybook/geshi , Sass and Twig syntax highlighting can be added to text fields in Drupal.

Here are some common settings for HTMLawed that can be used as a more lenient 'filtered html' format for trusted editors that need a simple WYSIWYG. This configuration allows images, which can be a security risk. If you don't understand the risk, then leave Drupal's defaults the way they are and perhaps try to work with the Full HTML format or use CSS classes and stylesheets.

Omega 4.x Demonstration w/Sebastian aka fubhy, by Joel Moore

Here are some examples of using Drupal's states API. It shows the use of OR and XOR (which only work with jQuery 1.8 or above, apparently). More examples can be found in the examples project in the form example module.

Here's a Tampermonkey script which adds a Save and Edit button to the mini panels content edit page for every site :) If you don't have the button, then every time you save, you are brought back to the mini-panels content overview page, which gets kind of long.

There are contributed modules that will help with this that are listed below. You can also use Form API's #attributes to add in an HTML5 placeholder. Here's an example using Drupal Form API:

In Drupal 7, when you have a file field, there is an upload button next to the input field. After selecting a file, if the upload button isn't pressed, the file gets uploaded upon submission of the form. Some say the upload button isn't necessary. So, here's some code that will hide the button for a specific field. Thanks to Chris Darke for the snippet.

An example module which integrates the Flag module with a custom form.

Theming polls is not that hard when you know what to do:

First, you can use templates to theme everything except the radios:

• poll-vote.tpl.php
• poll-vote-block.tpl.php (must also copy over poll-vote.tpl.php)
• poll-results.tpl.php

Sometimes it is useful to be able to submit a custom form and have the results show below the form. By creating a markup field in the form and by using $form_state['storage'] in a submission handler, here's how I did it: