Over 1.105.000 registered users (EN+CZ).
AutoCAD tips, Inventor tips, Revit tips, Civil tips, Fusion tips.
Try the new precise Engineering calculator.
New AutoCAD 2026 commands and sys.variables and env.variables,.
CAD tip # 6546:
Question
A
If you need to create a partially "transparent" toolbar icons, you cannot use standard ways of PNG format with alpha-channel or transparent GIF files - AutoCAD (up to 2014) supports only icons in the BMP format which doesn't work with transparency.
But you can use a trick - the color with the hue of 192-192-192 (RGB) used in BMP icons is interpreted by AutoCAD as "transparent". Since 2015 you can use PNG icons with transparency. Since 2017 the 192,192,192-trick doesn't work anymore and PNG is the only option for transparent icons.
ACAD2009ACAD2008ACLTADT
24.2.2009
14285×
this tip shared by ARKANCE experts applies to: AutoCAD 2009 · AutoCAD 2008 · AutoCAD LT · AutoCAD Architecture ·
![CAD Forum - tips, tricks, discussion and utilities for AutoCAD, Inventor, Revit and other Autodesk products [www.cadforum.cz] CAD Forum - tips, tricks, discussion and utilities for AutoCAD, Inventor, Revit and other Autodesk products [www.cadforum.cz]](../common/arkance_186.png)


