nodebox/nodebox — pull request #301 by stebanos (2012-12-10 14:06:25+00:00)
Title: Extended Color Control + Colorize node.

The checkbox next to the color control makes the color transparent, after which the checkbox becomes disabled. It only becomes enabled again when the user chooses a new color that's not totally transparent.

![colorizenode.png](https://f.cloud.github.com/assets/49342/3531/ac3c4902-42d2-11e2-9cbc-4921d3f159dd.png)