You can manage themes on the theme management screen, at Confluence Administration > Scroll Viewport > Themes:

You can carry out various actions in the Actions column:

Action

Description

DownloadDownload the theme as a JAR file, e.g. for backup or sharing
EditEdit the theme
DeleteDelete the theme
CopyMake a copy of the theme

Restrict creating, copying or editing of a theme

You can use CSS to hide the Start from Scratch, Copy and Edit actions in the Scroll Viewport Theme interface. 

  1. Navigate to Confluence administration > Look and Feel > Stylesheet

  2. Add the following CSS to hide the actions from space admins: 

    .spacetools  .sp-theme-info,
.spacetools  .sp-theme-action-edit,
.spacetools  .sp-theme-action-copy {
  display: none;
}
    CODE