Catch invalid colors

[simonv3]

if you input an invalid color here (by removing the hashtag, for instance), the corresponding elements become invisible

We should use this regex on validation

"^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$"

[vihdzp]

Would it maybe be easier to display the hashtag separately on an immutable label? That way you can't delete it by accident.

Also, if colors with an alpha channel are a desired feature, four or eight letters and numbers would also be valid.

[simonv3]

Just added some simple "hey that's not a real color" checking.

[bruno-corso]

where is this? I'd like to help but i can't find this on the website

[simonv3]

@bruno-corso If you create an artist, it's under "edit details" which takes you to the "manage/artists/:artistId/customize" view. The CustomizeLook component dictates whether a user first chooses a theme, or whether they're editing colors.