Config properties

[karshPrime]

What properties in config must be overridden to change colour for comments and linenumber?

Here're my current configs:

require('everblush').setup({
    transparent_background = true,
    nvim_tree = { contrast = false, },
    override = {
        -- comment
        -- line number
    },
})
vim.cmd('colorscheme everblush')

[psynyde]

highlight names are same as nvims highlight group. for example
linenumber is LineNr & comment is Comment.
I presume you have telescope setup, if so use :Telescope highlights to search all highlights.