Change colors of tooltip value drawn of xaxis and yaxis

Hello,

To customize the color of the axis tooltip boxes, you need to create a custom SCIDefaultAxisInfoProvider subclass that overrides the tooltip appearance. Assign it to axis.axisInfoProvider.

private class CustomAxisSeriesInfoProvider: SCIDefaultAxisInfoProvider {

// Custom tooltip subclass to override background color
        class CustomAxisTooltip: SCIAxisTooltip {
            override func updateInternal(with axisInfo: SCIAxisInfo) -> Bool {
                super.updateInternal(with: axisInfo)
                // Set your desired tooltip background color (ARGB hex format)
                setTooltipBackground(0xFFEF67AA)
                self.textColor = UIColor.black
                return true
            }
        }

        // Return our custom tooltip only when the modifier is SCICursorModifier
        override func getAxisTooltipInternal(
            _ axisInfo: SCIAxisInfo,
            modifierType: AnyClass
        ) -> ISCIAxisTooltip {
            if modifierType == SCICursorModifier.self {
                return CustomAxisTooltip(axisInfo: axisInfo)
            } else {
                return super.getAxisTooltipInternal(axisInfo, modifierType: modifierType)
            }
        }
    }

        // Assign the custom info provider to your axes
        let xAxis = SCINumericAxis()
        xAxis.axisInfoProvider = CustomAxisSeriesInfoProvider()

        let yAxis = SCINumericAxis()
        yAxis.axisInfoProvider = CustomAxisSeriesInfoProvider()

Please refer similar example here: Customization RolloverModifier