Slope with the length of the ascent/descent

Hi,

I use my own dashboard for the bike. The problem for me are the climbs/descents (I don't have a slope with the length of the climb/descent). I tried to use a graph, but this function is completely unsuitable (the graph is simply always too flattened and almost invisible in the sun) for this purpose.
Coloring the route trace (with the slope option) also does not work, and in full sun the shades of transitions from green to yellow are not good.
It would be best to have a function that would display the numerical values of slope + length of the section (before the current position) before the next section with different parameters.

waldemar