This color setting is used for hyperlinks, which open popup windows. This has three values – red, green and blue. These values specify the color of text that displays a popup panel e.g. dictionary or word list. The valid values for the colors start from 000 to 999, which represent highest intensity. The three values of “000 000 000” represent the colors of red, green and blue respectively and this combination displays black text on a white background. The high-contrast color schemes are used to optimize the visibility of screen objects for people with visual impairments.
With this setting you can change the color of hypertext of Windows help file. It’s a text when chosen, displays a pop-up panel (the type of panel used for glossary definitions).
For this, go to Start > Run menu, enter “regedit” and navigate to the registry path listed below. You can create a String value “PopupColor” in the right panel, if this value does not exist. Now, right-click on it to modify the data value with the combined values for red, green and blue colors in the format “000 000 999” respectively. However, the triple null digits (000) can be written as single zero (0) like “0 0 0” = Black. This value as a whole specifies the color of the text.
| Color | Color_Code |
| Black | 0 0 0 |
| Blue | 0 0 255 |
| Green | 0 128 0 |
| Maroon | 128 0 64 |
| Purple | 128 0 128 |
| Red | 255 0 0 |
| Teal | 0 128 128 |
| Dark Blue | 0 0 128 |
| Dark Green | 0 64 0 |
| Dark Purple | 64 0 128 |
| Dark Red | 128 0 0 |
| Dark Teal | 0 64 64 |
The changes take effect after a restart or logoff.
NOTE:This setting applies to the “.hlp” file format and not to the “.chm” file format.