b24-snippets/bx-custom-include/kanban-color/script.js

BX.addCustomEvent('Kanban.Grid:onRender', grid => {
    if (grid.getData().entityType != 'DYNAMIC_183')
        return;

    const items = grid.getItems();

    for (let key in items) {
        if (key < 1) continue;
        const item = items[key];
        if (!('data' in item) || !('dateCreate' in item.data)) continue;
        const HOUR = 1000 * 60 * 60;
        const pattern = /^(\d{2})\.(\d{2})\.(\d{4})\s(\d{2})\:(\d{2})\:(\d{2})$/;
        const createdDate = new Date(item.data.dateCreate.replace(pattern,'$3-$2-$1 $4:$5:$6'));
        if ((Date.now() - createdDate) >= HOUR * 48) {
            BX.addClass(item.container, 'kanban-color-bg-animate');   
        }
    }
});