This is the first Developer Preview of Simplified Textures 1.19.2. 

This build is now renamed from Simplified Textures Codename Slightspeed to Simplified Textures 1.19.2 (Glow in the Deep Dark Update) 

Added candles. 
Tweaked Blast Furnace (top only). 
Reverted the design of Spyglass from 4th to 2nd.
Updated the pack image and title screen.
Tweaked Barrel (top texture). 
Tweaked Glowstone Dust. 