change colorset for elevation graph to steelblue default theme

[edoput]

Change color theme for leaflet elevation graph to steelblue, a default provided theme that look like this

the result provides better contrast for the elevation graph and the icons

The screenshots are taken from ninux.nodeshot.org by changing the class from lime-theme to steelblue-theme.

I couldn't see the map in the development installation of nodeshot but I could see that the theme was indeed changed

Close #270.

[nemesifier]

I don't think this is a real improvement, the color of the elevation profile is very similar to the sea, the initial issue was related to the close button, not the color of the elevation profile.

[edoput]

The problem I am trying to solve is a to have a pleasant graph with the good mix of color scheme and accessibility. The default steelblue theme is nicer than lime theme for the purpose.

Right now there are two problems with making the close button bigger, of a different color or with a colored background.

• icon-close is reused everywhere; we can't have a background color without having it everywhere (in the legend, in the modal signup,...)
• a tags inside the map are blue

some solutions

• change from a to button (or something clickable), implement the css for .leaflet-container button
• make the map tools a toggle button on the right toolbar, clicking it
• change the color theme to a custom one, keep the close icon as a a tag (so we keep it blue), make the graph

The first solution requires changing some html, some js and css; the second is maybe better in term of UX as all the other tools are already toggles but requires a lot of work; the third solution is fairly simpler in term of changing a css file completely, swapping it with a custom one.

Given all this I would like to experiment with a custom color theme and maybe this option can fit nicely