Method insert

src/lib/svg.ts:597–605

(item: SvgItem, after?: SvgItem)

    }

    insert(item: SvgItem, after?: SvgItem) {
        const idx = after ? this.path.indexOf(after) : -1;
        if (idx !== -1) {
            this.path.splice(idx + 1, 0, item);
        } else {
            this.path.push(item);
        }
        this.refreshAbsolutePositions();
    }

    changeType(item: SvgItem, newType: SvgCommandTypeAny): SvgItem | null {
        const idx = this.path.indexOf(item);