Recently got an issue that, users not able to view the latest Published Theme Image in their logins in Dynamics 365 CRM V9.X On-premises environment.
Continue readingDynamics CRM Themes
Microsoft Dynamics CRM Themes
Have a look at below articles about Dynamics CRM Themes,
Microsoft Dynamics CRM Themes Explained
Color me CRM: Matching Theme and Logo Colors in Dynamics CRM
Arun Potti's MS CRM blog 