When the default Filament look doesn't match your styling needs, its not recommended to publish & overwrite the views.

The best way is to create a custom theme and then override the Tailwind CSS classes of components e.g. .filament-button, input, select. Sometimes also siblings must be selected with CSS and customized.

1. Applying Tailwind Classes

In /resources/css/filament.css you can apply Tailwind Classes like this:

@import '../../vendor/filament/filament/resources/css/app.css';
 
.filament-sidebar-item > a {
    @apply bg-gradient-to-r from-rose-400 via-fuchsia-500 to-indigo-500 rounded-none hover:rotate-3
}
 
.filament-tables-row:nth-child(odd){
    @apply bg-gray-50
}

2. Customizing CSS

Another way is to write specific CSS in tailwind.config.js, a sample tailwind.config.js with some round corners removed looks like this:

const colors = require('tailwindcss/colors')
const plugin = require('tailwindcss/plugin');
const defaultTheme = require('tailwindcss/defaultTheme');
 
module.exports = {
    content: [
        './resources/**/*.blade.php',
        './vendor/filament/**/*.blade.php',
    ],
    darkMode: 'class',
    theme: {
        extend: {
            colors: {
                danger: colors.rose,
                primary: colors.yellow,
                success: colors.green,
                warning: colors.amber,
            },
            fontFamily: {
                sans: ['DM Sans', ...defaultTheme.fontFamily.sans],
            },
        },
    },
    plugins: [
        require('@tailwindcss/forms'),
        require('@tailwindcss/typography'),
        plugin(function({ addComponents }) {
            addComponents({
                '.filament-button,.filament-tables-container': {
                    borderRadius: '0 !important'
                },
                '.filament-sidebar-item > a' :{
                    borderRadius: '0 !important'
                },
                '.filament-tables-pagination div' :{
                    borderRadius: '0 !important'
                },
                '.ring-2' : {
                    borderRadius: '0 !important'
                },
                'input,select' :{
                    borderRadius: '0 !important'
                }
            })
        })
    ],
}