If you've used Joomla for websites that require custom forms, you've probably heard about Breezing Forms, or it's predecessor, Facile Forms. Breezing forms is the best Joomla component you can use for custom forms, in my opinion, but it is not without it's flaws. The programmer, however usually addresses bugs pretty quickly, and is available to help with problems that come up.
When I upgraded to a new version, 1.65 I think, I was dismayed to see the huge, red and blue captcha image in a big bubbly font. The old captcha image was small and could fit onto compact forms, worked into webpage content to increase conversion. Now the captcha image itself was about 1/2 the size of many of my forms!
Luckily, this is something that you can configure. There's a file available just for that purpose:
Open up the file you'll see well commented parameters that allow you to change the size, distortion, font, font color, number of characters, and background of the Breezing Forms captcha image.