how to overwrite specific colors

[Sebastian]

I tried to change some colors but don't know how to do this.
Following the suggestions in lush, i.e. replacing harbour with jellybeans-nvim in the pasted code below didn't work

-- ~/.config/nvim/colors/my-harbour.lua
-- See create.md and rktjmp/lush-template for more details on what can go in this file.

vim.opt.background = 'dark'
vim.g.colors_name = 'my-harbour'

-- First we will need lush, and the colorscheme we wish to modify
local lush = require('lush')
local harbour = require('lush_colorscheme.harbour')

-- Now we will extend the colorscheme
local spec = lush.extends({harbour}).with(function()
  return {
    -- make the telescope popup look like the pmenu
    TelescopeNormal { harbour.Pmenu },
    -- you can now use TelescopeNormal just like any other group (ref, inherit, etc)
    TelescopeBorder { fg = TelescopeNormal.bg.li(20) },
    TelescopeTitle { fg = TelescopeNormal.bg, bg = TelescopeNormal.fg },
  }
end)

-- then pass the extended spec to lush for application
lush(spec)

Could you give an example on how to change colors? Thanks!

[meldafert]

The issue seems on the lush side here, that it recommends using "lush_colorscheme" here but "lush_theme" elsewhere.
This worked for me (note the require("lush_theme...")

vim.opt.background = 'dark'
vim.g.colors_name = 'jellybeans-nvim-dark'

-- First we will need lush, and the colorscheme we wish to modify
local lush = require('lush')
local jellybeans = require('lush_theme.jellybeans-nvim')

local hsl = lush.hsl

local background = hsl("#000000")

-- we can apply modifications ontop of the existing colorscheme
local spec = lush.extends({jellybeans}).with(function()
  return {
    -- adjust background to be black
    Normal { bg = background, fg = jellybeans.Normal.fg },
  }
end)

-- then pass the extended spec to lush for application
lush(spec)

[meldafert]

Note that the documentation upstream has been adjusted. I think this issue can be closed.