added explanation 'floors in 3D geometries' to tstep

config.cpp

@@ -1255,7 +1255,7 @@ void add_edit_wall_quality(char c) {
       "Controls the number of triangles used for wall surfaces. "
       "Higher numbers reduce the performance. "
       "This has a strong effect when the walls are curved indeed "
-      "(honeycombs based on horospheres, and projections other than native perspective), "
+      "(floors in 2D geometries, honeycombs based on horospheres, and projections other than native perspective), "
       "but otherwise, usually it can be set to 1 without significant adverse effects other "
       "than slightly incorrect texturing."
       )

language-cz.cpp

@@ -8151,7 +8151,7 @@ S(
   "Controls the number of triangles used for wall surfaces. "
   "Higher numbers reduce the performance. "
   "This has a strong effect when the walls are curved indeed "
-  "(honeycombs based on horospheres, and projections other than native perspective), "
+  "(floors in 2D geometries, honeycombs based on horospheres, and projections other than native perspective), "
   "but otherwise, usually it can be set to 1 without significant adverse effects other "
   "than slightly incorrect texturing.",
   

language-pl.cpp

@@ -7869,7 +7869,7 @@ S(
   "Controls the number of triangles used for wall surfaces. "
   "Higher numbers reduce the performance. "
   "This has a strong effect when the walls are curved indeed "
-  "(honeycombs based on horospheres, and projections other than native perspective), "
+  "(floors in 2D geometries, honeycombs based on horospheres, and projections other than native perspective), "
   "but otherwise, usually it can be set to 1 without significant adverse effects other "
   "than slightly incorrect texturing.",