To add custom icons to the Life Events and Business Milestones, you need to upload them as static resources in Setup > Custom Code > Static Resources. You also need to update the Icon Name field on the Life Event and Business Milestone objects to match the name of the static resource. Verified References: : Salesforce Financial Services Cloud Implementation Guide, page 58.

Explanation
The following value outcomes should the company's stakeholders expect from implementing Salesforce Financial Services Cloud (FSC):
Achieved higher CSAT & NPS scores attributed to personalized customer experiences driven by shorter waits due to decreased average case handle times and improved self-service solutions via Einstein Bots for FSC. This outcome means that the company improved its customer satisfaction (CSAT) and net promoter score (NPS) metrics by providing customized and relevant interactions with customers, reducing their waiting time by handling cases more efficiently, and offering self-service options through chatbots powered by artificial intelligence.
Improved customer onboarding experiences by fast-tracking and simplifying document tracking and approvals via FSC Action Plans. This outcome means that the company enhanced its customer onboarding process by speeding up and streamlining the document management and approval workflow using Action Plans, which are features that allow users to create templates for common client processes, such as account opening, loan application, or financial review.
Drove Advisor productivity with a daily task list, client life events, opportunities, and aggregated household information directly from the FSC Home Page. This outcome means that the company increased its advisor productivity by providing them with a daily task list that shows their priorities and action items, a client life events component that shows important events in their clients' lives, an opportunities component that shows potential sales deals, and an aggregated household information component that shows a holistic view of their clients' financial situation, all on the FSC Home Page

The following steps are required to disable Person Accounts and use the Individual object model in Financial Services Cloud:
Log a case with Salesforce to perform the conversion from Person Accounts to the individual model. You need to contact Salesforce Support to request the conversion from Person Accounts to the individual model. This is an irreversible process that affects your data model and user interface. You should carefully evaluate your business needs and test the functionality in a sandbox or developer org before requesting the conversion in production.
Remove Person Account record types from the Individual Record Type Mapper. You need to remove any Person Account record types that are mapped to Individual record types in the Individual Record Type Mapper. This is a custom setting that defines how records are created when using certain features, such as Einstein Data Capture or Salesforce Inbox. You can access this setting by going to Setup > Financial Services Settings > Individual Record Type Mapper.
Assign the Individual record type to the user profiles. You need to assign the Individual record type to the user profiles that need to create or access Individual records. The Individual record type is a standard record type on the Account object that represents an individual person who is not directly related to your business, such as a prospect, influencer, or household member. You can assign record types by going to Setup > Profiles > Object Settings > Accounts > Record Types. Verified Reference: : Salesforce Help Article 5 : Salesforce Help Article 6 : Salesforce Help Article 7