# White CSS Theme (JavaScript Scheduler) | DayPilot Pro for JavaScript Demo

> You can create a theme using the online DayPilot Theme Designer: [https://themes.daypilot.org/](https://themes.daypilot.org/)

## Links

- Canonical HTML: /demo/scheduler/themewhite.html
- Source HTML folder: /demo/scheduler/
- Catalog root: /demo/
- Catalog: /demo/llms.txt

## Source

### Inline demo script 1

```javascript
const dp = new DayPilot.Scheduler("dp", {
            theme: "scheduler_white",
            startDate: new DayPilot.Date("2026-01-01"),
            cellGroupBy: "Month",
            days: 365,
            scale: "Day",
            treeEnabled: true,
            rowMarginTop: 2,
            rowMarginBottom: 2,
            resources: [
                {
                    name: "Locations", id: "G1", expanded: true, children: [
                        {name: "Room 1", id: "A"},
                        {name: "Room 2", id: "B"},
                        {name: "Room 3", id: "C"},
                        {name: "Room 4", id: "D"}
                    ]
                },
                {
                    name: "People", id: "G2", expanded: true, children: [
                        {name: "Person 1", id: "E"},
                        {name: "Person 2", id: "F"},
                        {name: "Person 3", id: "G"},
                        {name: "Person 4", id: "H"}
                    ]
                },
                {
                    name: "Tools", id: "G3", expanded: true, children: [
                        {name: "Tool 1", id: "I"},
                        {name: "Tool 2", id: "J"},
                        {name: "Tool 3", id: "K"},
                        {name: "Tool 4", id: "L"}
                    ]
                },
                {
                    name: "Other Resources", id: "G4", expanded: true, children: [
                        {name: "Resource 1", id: "R1"},
                        {name: "Resource 2", id: "R2"},
                        {name: "Resource 3", id: "R3"},
                        {name: "Resource 4", id: "R4"}
                    ]
                },
            ],
            onTimeRangeSelected: async args => {
                const modal = await DayPilot.Modal.prompt("New event name:", "Event");
                dp.clearSelection();
                if (modal.canceled) {
                    return;
                }
                dp.events.add({
                    start: args.start,
                    end: args.end,
                    id: DayPilot.guid(),
                    resource: args.resource,
                    text: modal.result
                });
                dp.message("Created");
            },
            height: 350,
            contextMenu: new DayPilot.Menu({
                items: [
                    {
                        text: "Edit...",
                        onClick: async args => {
                            const form = [
                                {id: "text", name: "Event Name", type: "text"}
                            ];
                            const e = args.source;
                            const modal = await DayPilot.Modal.form(form, e.data);
                            if (modal.canceled) {
                                return;
                            }
                            dp.events.update(modal.result);
                        }
                    },
                    {text: "-"},
                    {
                        text: "Delete",
                        onClick: args => {
                            dp.events.remove(args.source);
                        }
                    }
                ]
            }),
            onBeforeEventRender: args => {
                args.data.areas = [
                    {
                        right: 4,
                        top: 6,
                        width: 24,
                        height: 24,
                        padding: 2,
                        symbol: "../icons/daypilot.svg#threedots-v",
                        action: "ContextMenu"
                    }
                ]
            }

        });
        dp.init();
        dp.scrollTo("2026-03-01");

        const app = {
            init() {
                this.loadEventData();
            },
            loadEventData() {
                // generate and load events
                const events = [];

                for (let i = 0; i < 15; i++) {
                    const duration = Math.floor(Math.random() * 6) + 1; // 1 to 6
                    const durationDays = Math.floor(Math.random() * 6 + 2); // 2 to 7
                    const start = Math.floor(Math.random() * 6) + 2; // 2 to 7

                    const resId = String.fromCharCode(65 + i);

                    const event = {
                        start: new DayPilot.Date("2026-03-01T00:00:00").addDays(start),
                        end: new DayPilot.Date("2026-03-01T12:00:00").addDays(start).addDays(durationDays).addHours(duration),
                        id: DayPilot.guid(),
                        resource: resId,
                        text: `Event ${i + 1}`
                    };

                    events.push(event);
                }
                dp.update({events});
            }
        };
        app.init();
```