Graphical Mods are a big part of Minecraft 1.19 and recently players were on two sides regarding whether to choose Optifine or Sodium. Check out this guide to see the different features for both.
Black Dye can be used like other dyes for dying wool, collars, wool, leather armor, beds, glass, etc. If combined with Gun Powder it can make Firework Star. Here is how to craft black dye.