To change the grid color for Visio
Quit Engineering Base.
Start Registry Editor.
Look for the key
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\14.0\VisioEngineeringBase when you use Visio 2010
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\15.0\VisioEngineeringBase when you use Visio 2013
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\VisioEngineeringBase when you use Visio 365 Plan 2
Create a new key Colors.
Create a new string value ColorGridForeground.
On the shortcut menu, click Modify.
In the Value data box, type the string 230 230 230 or another value for the grid color.
Click OK to save your changes.
Start Engineering Base.
Engineering Base uses the new grid color in the Visio windows.
You need administrator rights to change this registry setting.
If you have Engineering Base installed on a 32-Bit Windows system, the registry entries shown on this page may be displayed differently. Please read the details in the topic about system registration in 32-Bit Windows versions.