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CAD tip CAD tip # 6546:

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Q - question

How to set transparent color for my own AutoCAD icons?

A - answer 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.

100% *  CAD 
24.2.2009    9412x  
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See also:
Tip 10808:How to make transparent icons for my CUI ribbon in AutoCAD 2017.
Tip 10204:How to attach an .AdskLib material library in AutoCAD?
Tip 10062:Empty (white/transparent) Quick Access Toolbar - QAT.
Tip 9528:Using Autodesk Fusion 360 as a CAD converter.
Tip 6860:The many shapes of AutoCAD UCS icons.

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