Customizes the leader colors to have more variety & personality, improved contrast & readability, and also keeps them more consistent across playthroughs by minimizing, or avoiding altogether, the use of alternate jerseys.
Only the default jerseys have been modified. The three alternates per leader remain unchanged so long as I can keep each default unique. This is also assuming that random opponents cant pick two of the same persona (hence why the Napoleons are okay to share a primary color). As more leaders are added relying on alternate jerseys may become necessary, at which point those will be modified as well.
Manual Installation:
Make sure hidden files and folders are visible.
Windows: Extract to %USERPROFILE%\AppData\Local\Firaxis Games\Sid Meier's Civilization VII\Mods
MacOS: Extract to ~/Library/Application Support/Civilization VII/Mods
Linux: Extract to ~/My Games/Sid Meier's Civilization VII/Mods/
Example installation Windows:
Comparison to default colors:
My use of pre-jersey refers to Civ 6 leader colors before the system was introduced and all colors were changed to the limited palette.
Caveats:
Top right leader banners are slightly washed out compared to settlement banners and unit icons.
Alternate jerseys are baked into saves. For example, creating a unmodded save with Hatshepsut, Confucius, and Amina in that order would have the latter two both using alternate jerseys. Enabling this mod with that save would alter Hatshepsut's colors, but not the other two since they are already using alternates.
The reverse also applies. Creating a modded save with the same three leaders would have them all using a primary jersey since the mod jerseys are unique. Disabling the mod would see Hatshepsut and Confucius sharing a primary color.
In other words, enabling it on old saves mostly works. For best results, use with a new save.
Does not work with saved setup presets. The setup would need to be recreated from scratch then saved. Loading an old preset and resaving isn't good enough.
Save/Load file menu icon colors are baked at the time of save.
Does not respect colorblind settings for the leader colors. All other UI elements adjusted by colorblind settings should be unaffected though.
Jersey system primer:
Jersey System (Civ6)
The Jersey System is a civilization color selection system introduced to Civilization VI in the February 2019 Update, coinciding with the release of the Gathering Storm expansion. It is used to prevent two or more leaders from having similar color schemes. Each leader has four "jerseys." If the...
civilization.fandom.com
Mod This Mod:
Feel free to edit the colors in data/colors.sql. The colors are RGBA 0-255 with the A always being 255.
An example tweak would be to brighten Bolivar's blue by changing the Color and Color3D values of BOLIVAR_SECONDARY from 0,48,135,255 to 0,67,179,255
Useful Tools:
https://oklch.com/ Probably the best color space for keeping hues constant while adjusting perceived lightness and chroma.
https://www.myndex.com/APCA/ A perceptual contrast calculator. Other than blue/red Napoleon I tried to keep contrast at least +-45.
That's it, stay civilized!
