Method style

packages/dockview-core/src/splitview/splitview.ts:279–292

(styles?: ISplitviewStyles)

    }

    style(styles?: ISplitviewStyles): void {
        if (styles?.separatorBorder === 'transparent') {
            removeClasses(this.element, 'dv-separator-border');
            this.element.style.removeProperty('--dv-separator-border');
        } else {
            addClasses(this.element, 'dv-separator-border');
            if (styles?.separatorBorder) {
                this.element.style.setProperty(
                    '--dv-separator-border',
                    styles.separatorBorder
                );
            }
        }
    }

    isViewVisible(index: number): boolean {
        if (index < 0 || index >= this.viewItems.length) {