Hi Maria Magana,
Greetings from Syncfusion.
We would like to let you know that, currently SfEffectsView does not have a support to customize the opacity of ripple and selection color. Already, we have considered this as a feature request. Please find the below feedback link to track the status of the feature.
Please cast your vote to make it count. We will prioritize the features every release based on the demands, and we do not have an immediate plan to implement this feature. So, this feature will be available in any of our upcoming releases.
If you have any more specifications/suggestions to the feature request, you can add it as a comment in the portal.
Regards,
Vignesh Ramesh.
