system/config/captcha.php
default
Captcha configuration is defined in groups which allows you to easily switch between different Captcha settings for different forms on your website. Note: all groups inherit and overwrite the default group.
Group Options:
- style
- Captcha type, e.g. basic, alpha, word, math, riddle
- width
- Width of the Captcha image
- height
- Height of the Captcha image
- complexity
- Difficulty level (0-10), usage depends on chosen style
- background
- Path to background image file
- fontpath
- Path to font folder
- fonts
- Font files
- promote
- Valid response count threshold to promote user (FALSE to disable)
Default value: array