Alpha v0.18.7

This is a small update with some new features and bug fixes.

Changes

• Small performance optimizations (#1743)
• Colors are now a data type and are selectable via color picker in many nodes (#1732)
• Added missing previewing features on Text Areas (#1766)

New Nodes

• Generate Hash (thanks @Zarxrax) (#1738)
• Z-Stack Images (thanks @JustNoon) (#1745)
• (webui integration) Image Upscale (thanks @mateusz) (#1692)

Bug Fixes

• (webui integration) fixed caching not respecting image changes (#1762)
• Fixed Fill Alpha causing errors in certain chains (#1768)
• Fixed iterators not properly catching certain types of errors (#1771)

Also thanks to the maintainers who contributed to this release: @joeyballentine @RunDevelopment