The following guidelines address common designpitfalls when creating or editing a map style. Google recommendsyou also consult with a graphic designer to assemble and review your design.

• Make sure there is enough color contrast: Contrast helps keep the textreadable and helps distinguish certain map features. For details, seeChoose contrasting fill and stroke colors.

• Check different zoom levels: Test that your style elements look good atdifferent zoom levels.

• Avoid color combinations known to be problematic for colorblind users:Make sure your design is usable for people who are colorblind.

• Check Night mode: For mobile designs, make sure your design works withNight mode.

Choose contrasting fill and stroke colors

Make sure there is enough contrast between fill and stroke colors to make sureyour map features are distinguishable from the background and from similar mapfeatures.

• Polygons for a line: Choose colors that contrast to show the detail ona line. For example, trails are dotted lines, and if the colors don'thave enough contrast, it looks like a solid line. Highways are outlined onthe outer edges, so without contrast, they may look solid, and thereforecould be confused with other road types.

• Polygons for a shape: Contrast helps you see the borders betweenpolygons that are next to each other.

• Text stroke and fill: For text, the stroke is your outline color, whichhelps to make the text readable against background colors. If the strokecolor is too similar to the fill color, your fonts may also appear blurry orout of focus.