Making gardens to use grass color with plant nursery pattern

[kocio-pl]

Resolves #3022.

Green areas redesign (#2964) didn't work too well for gardens. It seems that garden is a very wide concept, so it can be a small residential green area, something like farm, something like park (including public botanical gardens), also a more precise version of village green.

Therefore a more subtle change would be better - something like grass (general mild green) but with a pattern that shows that there's usually something more growing and it's human curated (hence regular pattern from plant nursery). I also opt for 60% opacity for the pattern, since I don't like the home gardens to stand up too much and also because the original pattern color has lower contrast because the background is darker.

Examples:

[kocio-pl]

Unfortunately grass areas in gardens are not too visible, but at least now they can be spotted:

[polarbearing]

I like the approach in general. Could we have a side-by-side comparison of the related renderings, i.e. garden, orchard, grass, park, nursery etc, in labelled thumbnail squares somehow? Thanks.

[kocio-pl]

I don't understand what do you want - before/after garden renderings, a gallery of different green areas renderings or maybe something else?

[matthijsmelissen]

I need to get used to it, but after giving it some thought it is actually a quite sensible rendering.

[polarbearing]

a gallery of different green areas renderings

Kind of that. Maybe it's worth a separate meta-issue? We are lacking a legend, either automatic #1928 or manual. Maybe we could make a requirement that each PR creates a standardized thumbnail that we can collect somewhere?

[kocio-pl]

Discussion about legend belongs probably to #1928 - thanks for recalling, I'll write about it there.

[kocio-pl]

@polarbearing Here is the main part of the green areas you wanted to see (the rest is in few other sections): https://wiki.openstreetmap.org/wiki/Standard_tile_layer/Key#Agriculture_and_industry