DF keeps crashing after using the TitleBar button "Highlight Window".
Attached the log while reproducing the crash.

Steps to reproduce:

• Add button "Highlight Window" to the TitleBar
• Click button on any window, see the colour window open up
• Choose any color, click OK, see the color around the window working
• Click button "Highlight Window" again. Sometimes DF crashes here, but most times the color deactivates (as intended)
• Click button "Highlight Window" again. Most times DF crashes here, but sometimes I can select a color
• If DF has not been crashed, clicking the OK on the colour window for the second time will always crash DF

Environment:
Windows 8 Pro N
DisplayFusion Pro v5.1
Two monitors.

Remarks:
Oh and the previous color is not remembered.

Ah that's great! Running beta at home, but missed that fix.