Use these in the "Custom CSS" section of the "BookPoints Customizable" theme customization control panel to override the colors of your various buttons.  Replace the #hex color code with your own colors.

/* front page, login button */

form#user-login-form input#edit-submit { background-color: #3a3166; border-color #3a3166;}

/* front page, register button */

form#regbutton input { background-color: #3a3166; border-color #3a3166;}

/* reader dashboard, Add Reader button */

#tab-container .add-reader a {

background-color: #3a3166;

border-color #3a3166; }

/* reader dashboard, book log Submit button */

#edit-submit--2 { background-color: #3a3166;

border-color #3a3166; }

/* reader dashboard, secret code Submit button */

#edit-submit--3 { background-color: #3a3166;

border-color #3a3166; }

/* reader dashboard, Activities Claim button CLASS */

#activities-panel .activity-button { background-color: #3a3166;

border-color #3a3166; }

/* reader dashboard, font points color */

#reader-dashboard #activities-block .activities-block-header h2 { color: #3a3166; }