Flags, New Dye Colors, New Banner Patterns, and Banner Pattern Mechanics

As a massive banner maker, I love the 16 dye colors and banner patterns we currently have, but I think adding a few more dye colors and banner patterns would be lovely, along with flags and updating banner mechanics. Here's what I'm pitching:

Flags

• A banner that's horizontal.

New Dyes (And Their Corresponding Items and Blocks)

• Bring back the chartreuse color as an official dye to capture the hue between yellow and lime.
• Bring back the rose color as an official dye to capture the hue between red and magenta.
• Bring back the spring green color as an official dye to capture the hue between lime and cyan, without darkening the way green does.
• Bring back the ultramarine color as an official dye to capture the hue between light blue and blue.
• Bring back the violet color as an official dye to capture the hue between blue and purple.
• New tan dye to capture a new color that isn't quite brown, yellow, or light gray.

New Banner Patterns

• A horizontal version of Paly.
• Horizontal versions of Gradient/Base Gradient.
• An inverted version of Pale Dexter.
• An inverted version of Pale Sinister.
• New shape equivalents to Roundel and Lozenge.
• New banner patterns as exclusive loot in the Abandoned Camps, Ancient Cities, Desert Pyramids, Jungle Temples, Pillager Outposts, Trail Ruins, Villages, and Woodland Mansions.

Banner Pattern Mechanics

• You could now place up to 8 banner patterns on a single banner or flag. This will make detailing much easier.