How is colored glass bottle made? - An explanation of 2 ways of coloring

How does a glass bottle factory help to create different colors? Here's the secret!

00:39 Roetell factory
01:13 The first method: adding metallic compounds
01:35 The second method: spraying after forming
01:50 Why glass bottles were usually green?
02:11 Function of brown bottles
02: 27 Aesthetically made colors

1⃣️ Adding metallic compounds
iron oxides➡️greens, browns
manganese oxides➡️deep amber, amethyst, decolorizer
cobalt oxide➡️deep blue
gold chloride➡️ruby red
selenium compounds➡️reds
carbon oxides➡️amber/brown
a mix of manganese, cobalt, iron➡️black
antimony oxides➡️white
uranium oxides➡️yellow-green (glows!)
sulfur compounds➡️amber/brown
copper compounds➡️light blue, red
tin compounds➡️white
lead with antimony➡️yellow

2⃣️ Direct Spray
Spraying the surface with stannous chloride or lead chloride and reheating it in a reducing atmosphere.