highway=pedestrian/living_street is this comparison was set to pale gray/gray version. Reported problems were fixed, resulting in new shield colors, tweaked road color and subtler casings. Thanks for the feedback!
This comparison is using latest version of style, newer than one used on the OSM website. The most important change is the new forest style.
For start: place that had problem with too strong casing resulting in problems with bridge that was not sufficiently different from other sections of roads. It is now improved - and now it should be OK.
What is preferable? Large images or smaller ones next to each other (like in the previous entry)? Or maybe big pictures next to each other - but available as links and not inlined (like many in this older entry)?
Default OSM style is displaying huge amount of information. Here is image of displayed road types on some of landcovers. Note that due to size limitation effects of service tags (that would tripple different road styles) are not displayed.
New road style fixes problems with certain road types invisible on common landcovers, but there are still some situations where road is too close to landcover. Unfortunately, as result of huge amount of landcovers it is not easily fixable - but new problems are a bit less severe than old "trunk is invisible in forests, secondary is invisible on farmland".
highway=motorway through landuse=military is poor
highway=secondary shield is almost the same as the heath color
highway=secondary is close to natural=beach