Typo in hex error message

[ConnorTimpe]

Describe the bug
There is a typo in the error message for invalid hex values. The error message reads "Not an hex value", but should read "Not a hex value".

To Reproduce

1. Open a Color Picker
2. Delete all text in the HEX field
3. An error message should pop up reading "Not an hex value"
4. See error

Screenshots

[mikbry]

@ConnorTimpe I thought the 'h' was silent as many words in english, but your are right

[ConnorTimpe]

No problem. English is not a very consistent language. Thanks for making a great color picker!

[nickmealey]

This would be great to get updated :)