In the Timeline view dragging on the time line is difficult and there is likely to be an accessibility problem here in clicking in the right spot and making the right movements. The "window" is not obvious enough and the contrast of colours between the different colours of the sections and the text used is not enough. People who have vision difficulties (or who are a little bit older) will find it difficult to read the text and distinguish between the sections
Provide an alternative way to change the date for month and year (perhaps arrows on either side of the screen?) Improve the contrast or provide a way to change the colours?
Timeline View is third party code which we will not change without compelling reason.
There are some configurations we can change without modifiying the code.
But we need a more specific storyboard.
Timeline with arrows
A picture is shown with suggestions for style and placement of arrow buttons for moving the timeline left and right. The drag option doesn't work on mobile devices such as iPhone, so the buttons would help those users who can't drag in the timeline.
The labels for time periods do not have enough contrast, and should be at least as dark as #7D7D7D to ensure they are readable. I note that the other examples of the third party code in use has the text displayed in black. The paler colours used in LabTrove are quite difficult to read on the grey background. Perhaps they could also be in black or the colours darkened to make them more readable on the background?