Blendkit v3.21.3.261002-gold

What's Changed

Improvements

• fix: update thumbnail URL handling to support webp format by @Tweekazoid in #2313
• fix: enhance UI for node group selection by @Tweekazoid in #2323
• fix: bump version numbers to 3.21.3-261002 in init.py and blender… by @Tweekazoid in #2324

Full Changelog: v3.21.2.260918...v3.21.3.261002