To change the color of the icons in DVT, navigate to Window > Preferences and open the DVT > Icons preference page.

To change one or more icons select them in the tree and choose a filter from the drop-down list.

Once you are comfortable with the colors you chose, click Ok and you will be prompted for a restart to apply the changes.

There are six predefined color filters: Red, Yellow, Green, Cyan, Blue, Magenta. These filters change the predominant color of the selected icons into one of the six colors previously mentioned.

You can also create your own filters, by clicking the Edit... button. You will be prompted with a dialog that allows you to Add, Remove, or Duplicate custom filters.

To edit a filter, select it in left hand list, then modify the Hue, Saturation, or Brightness parameters in the right hand menu. These parameters will be applied only on the primary colors that are selected above.

The Overlap parameter indicates the hue interval size that will be modified.

For example, choosing to modify the red color with an Overlap of 180, will modify all the colors, since the hue interval is (-180, 180) degrees. An Overlap of 30 will only modify the colors in the (-30, 30) degrees hue interval around red.