Xmanager supports 6 visual types simultaneously. When your video device supports more than 16-bit colors, Xmanager sets the default visual as TrueColor. Otherwise, it sets the default visual as PseudoColor. The default visual is used by the X root window and most X applications for their windows.

Some X applications such as CAD tools were developed years ago for 256-color systems, so those applications work only on PseudoColor visual, and you should change the default visual.

Xmanager emulates PseudoColor visual in a true-color video device. When Xmanager emulates PseudoColor visual, the StoreColor request is a very expensive operation that slows down performance. Therefore, Xmanager supports the full StoreColor feature optionally.

Some X applications may fail in TrueColor visual when the bit fields of RGB value are not same with a specific UNIX/Linux system. To cope with this problem, Xmanager offers an option to change the RGB format in the TrueColor visual. For more information about visual, see The Color tab.

Xmanager also supports an RGB database file which translates color names to corresponding RGB values. You can edit the color database using a text editor.

To change the default server visual:

1. Run Xconfig.
2. Double-click on a profile. RESULT: A Properties dialog box opens.
3. Click the Color tab.
4. In the Choose Default Visual list, select an appropriate visual.
5. Click OK.

To support the exact StoreColor request in PseudoColor visual:

1. Run Xconfig.
2. Double-click on a profile. RESULT: A Properties dialog box opens.
3. Click the Color tab.
4. Select the Exact StoreColor in PseudoColor visual check box.
5. Click OK.

To emulate 256-color visual in true-color video device:

1. Run Xconfig.
2. Double-click on a profile. RESULT: A Properties dialog box opens.
3. Click the Color tab.
4. In the Choose Default Visual list, select PseudoColor.
5. Click the Advanced tab.
6. Select When Mapped for the Backing Store option.
7. Click OK.

To reverse the order of RGB fields in TrueColor visual:

1. Run Xconfig.
2. Double-click on a profile. RESULT: A Properties dialog box opens.
3. Click the Color tab.
4. Select the Reverse RGB Order for TrueColor check box.
5. Click OK.

To change or edit RGB color database:

1. Run Xconfig.
2. Double-click on a profile. RESULT: A Properties dialog box opens.
3. Click the Color tab.
4. In the Color Database area, click Change or View.
5. Click OK.