saas-one/frontend/operation-web/ext/modern/theme-material/overrides/tab/Tab.js

Ext.define('Ext.theme.material.tab.Tab', {
    override: 'Ext.tab.Tab',
    config: {
        iconAlign: 'top',
        flex: 1
    },

    platformConfig: {
        desktop: {
            maxWidth: 200
        }
    }
});