Brand Identity Elements/Important Notes
From Joomla! Documentation
< Joomla:Brand Identity Elements
This is a multiple article series on the basic guidelines for the correct usage of the graphic elements of Joomla’s identity, in order to create high quality, visually stunning communication materials.
Begin with the Introduction, and navigate the articles in this series by using the navigation button at the bottom or the box to the right (Articles in this series).
The relationship (size, positioning, colours, etc.) of the brand identity elements should never be altered in any way.
About the Trademark[edit]
When used alone, the Joomla! brandmark must appear with the TM (trademark) symbol.
Flat brandmark
3D brandmark
Do not use the Joomla! logo with the trademark (TM) 
: This version has been retired and should not be used.
About the registered indicia[edit]
The Joomla! logo must always appear with the common registered mark (R). The registered trademark notice is aligned with the top right of the exclamation point. This is standard in both versions of the logo. The colour of the indicia should always be the colour of the Joomla! logotype.
Using the logo[edit]
The brand manual explains in detail the usage requirements for the logo. The Joomla! logo and the Joomla! name are NOT trademark free. It is important to maintain the integrity of the logo. Anyone considering use of the logo must keep the following guidelines in mind.
The logo should use only the official logo colors listed in the manual and in this series. Any scaling must retain the original proportions of the logo. Other than the variations listed in the manual and in this series, the logo may not be modified in any way. Additional text may not be added in such a way that it appears to be part of the logo itself.
Any usage of the logo must be approved. In general permission will be given providing that your usage of the logo is not done in such a way as to imply any form of approval of the product, website, event or other idea or product by Joomla! or that there is any official connection with Joomla, joomla.org or Open Source Matters. Permission will not be granted to use the logo on any form of merchandise. An official Joomla! shop is provided for this purpose. Permission will not be granted for use in association with any product that violates the Joomla! license or any domains that distribute such products. We encourage you to learn more about our trademark policy and to get answers to some frequently asked questions about trademarks.
To lodge a request to use the Joomla Logo, please click on the green button at the top of this article.