dokter-telekonsultasi/public/scss/dark/components/chart/_chart.scss

.apexcharts-theme-light{
    .apexcharts-tooltip{
        background: $card-bg;
        border: 1px solid $border-color;
            .apexcharts-tooltip-title{
                background: $card-bg;
                border: 1px solid $border-color;
            }
    }
    .apexcharts-xaxistooltip{
        background: $card-bg;
        border: 1px solid $border-color;
        .apexcharts-xaxistooltip-text{
            color: $body-color;
        }
    }
}