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Have you ever wanted to insert a symbol but couldn't find the option in the menu? Then join the three other people in the world with the same problem.
Hold the 'ALT' key on your keyboard and type the number of the symbol you want from this table. Or switch the num lock on and type the code instead. Go on.
Feel free to go "ooh, that's cool" afterwards.
If you are looking for a colour but don't know how to describe it, use a hex (hexadecimal) code. The following charts list some of the more popular colours used in web and graphic design. Hex codes are much shorter versions of the binary reprisentation of RGB (red, green, blue) combinations.
For example the colour black would be written as 256,256,256 in RGB but would be written as 100000000,100000000,100000000 in binary. I think you'll agree this is a silly number. As a hex code this is written as #100100100, much easier to work with.
If you are interested in how RGB colours are translated in digital terms as binary or hex numbers watch the videos below.
Flat colours are essentially solid, bright colours that don't have any graduations. They are generally minimalistic colours.
Web safe colours are a set of 216 solid colours that are able to be displayed on computers and equipment that use older web browsers (the programs used to 'read' the internet. If you choose from these colours, you can be sure that they will display properly on any web browser.
Material design is a design 'language' (essential a philosophy or set of rules) developed by Google in 2014. It has become very common in UI (User Interface) design and so can be found on many many handheld digital devices such as mobile phones and tablets.