I just added support RAD Studio XE8 to the Delphi IDE Colorizer plugin, the new version (0.7.7.7) includes several improvements like the support for style owner draw controls of the IDE like the Device Manager.
Check the next screenshots with the VCL Style glow applied
If you want set your IDE with the same look of the images use these settings
For more info about the plugin check these pages
If you want report a issue or suggest a new feature please use the issue page of the project.