CAD tip # 6546:

Question

CAD

% platform category

How to set transparent color for my own AutoCAD icons?

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

*CAD

24.2.2009 13849×

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applies to: AutoCAD 2009 · AutoCAD 2008 · AutoCAD LT · AutoCAD Architecture ·

See also:
Tip 14006:	Universal MsgBox in AutoLISP.
Tip 13822:	Fast layer visibility toggle ON/OFF.
Tip 13504:	How to add own commands to AutoCAD custom palette?
Tip 13459:	DWG drawing version history directly in AutoCAD.
Tip 10808:	How to make transparent icons for my CUI ribbon in AutoCAD 2017.

Selected tip: Slow mouse motion in Revit and Inventor.

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