What exactly did they complain about? You've complete control over how the captcha displays via its parameters in CB AntiSpam > Parameters > Captcha > Modes > Internal > General. The new defaults are as follows.
Image Height: 50
Image Color Range: 0
Image Background Color: 255,255,255
Image Text Color: 20,40,100
Image Background Noise: Enable
Image Background Noise Color: 20,40,100
Image Foreground Noise: Enable
Image Foreground Noise Color: 20,40,100
Image Font Type: EARWIGFA.ttf and monofont.ttf
Character Rotation Range: 13
Character Offset Range: 3
Character Size Range: 5
Kyle (Krileon)
Community Builder Team Member
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If you are a Professional, Developer, or CB Paid Subscriptions subscriber and have a support issue please always post in your respective support forums for best results!
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If I've missed your support post with a delay of 3 days or greater and are a Professional, Developer, or CBSubs subscriber please
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Please note I am available Monday - Friday from 8:00 AM CST to 4:00 PM CST. I am away on weekends (Saturday and Sunday) and if I've missed your post on or before a weekend after business hours please wait for the next following business day (Monday) and will get to your issue as soon as possible, thank you.
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My role here is to provide guidance and assistance. I cannot provide custom code for each custom requirement. Please do not inquire me about custom development.