Input fields on the WordPress admin screens have been nearly invisible since version 2.7.
The problem was so severe that Matt suggested I make a plugin to override core CSS values
for anyone who wanted more contrast. Following community feedback, I created a second
plugin specifically for high contrast.
This plugin adds Admin Color Scheme options that dramatically change the appearance
of form fields, table rows, and background colors in the admin pages. It is not intended
to follow the design principles of the built-in style sheets. If this is too much for your
needs, then also consider my plugin with more subtle effects called Fix Admin Contrast
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