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136 Color Guidelines Color Passive-Matrix LCD Touch Panels
2.
Avoid using adjacent colors or background shades. When you use the same
colors or shades, the objects or text may be hard to see or read. The example in
Figure 208 shows good and bad contrasts.
Bad contrast
Good contrast
3.
Do not use bright or intense colors for buttons that display for long periods of
time. The brighter the colors, the more fatiguing to the eyes. Limit the use of
bright colors to show feedback.
4.
If you use a graphic on a button, either make the button the same as the
background on the graphic
or
change the background color of the graphic to
match the button.
Figure 208
Background shade example