Hello, add this code to the style.css file, located in to your theme folder (wp-content/themes/twentytwelve).
#com-shop .btn-primary {
background-color: #1D6CB0;
background-image: linear-gradient(to bottom, #2384D3, #15497C);
background-repeat: repeat-x;
border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
color: #FFFFFF;
text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
}
#com-shop .btn-small {
font-size: 11px;
line-height: 16px;
padding: 3px 9px !important;
}
#com-shop .btn-primary:hover, #com-shop .btn-primary:active, #com-shop .btn-primary.active, #com-shop .btn-primary.disabled, #com-shop .btn-primary[disabled] {
background-color: #15497C;
color: #FFFFFF;
}
Edit:
background-color:
background-image: Replace all colors.
filter:
color: for the text link
font-size:
Hover effect
color: for the text link
background-color:
If you need to edit anything else frontend-styles.css file is located in this directory.
wp-content/plugins/orillacart/com_shop/assets
Just copy lines from this file and paste in to style.css file.
Best Regards