MPAndroidCharts - Various type of graphs / charts (Latest library V1.22 in post #1) | B4X Programming Forum
How to highlight markerview in the center of screen by default and update markerView whenever lineChart circle overlaps it · Issue #3375 · PhilJay/ MPAndroidChart · GitHub
Highlighting central element of the bar data on the bar chart · Issue #4546 · PhilJay/MPAndroidChart · GitHub
android - MPAndroidChart set highlight color - Stack Overflow
mpandroidchart - How to show highlight in LineChart only when chart in press state or drag state? - Stack Overflow
RangeBar chart useful for displaying weather chart | by Ted Park | TedPark Developer | Medium