Make `color` configurations coherent

[nagyrobi]

Make `color` configurations coherent

[clydebarrow]

So you're suggesting to allow either color: 0xFF0000 or hex: FF0000 as synonyms? That is doable, but would require significant extra code (needs to be done everywhere color is used), and could be confusing in my opinion, for a small gain. You can define ESPHome colors and use the ID in the lvgl config already.

[nagyrobi]

I'd just say to allow for example just border_color: 2F8CD8 instead of border_color: 0x2F8CD8, if it's not too difficult...

[clydebarrow]

it is difficult, because in YAML 2F8CD8 is a string, and while that could be then converted as a hex number during validation, something like 606060 would be parsed as a decimal number by the YAML parser before it's even seen by a validator, so it would have to be written as "606060" which defeats the purpose. And since a color ID can also be used, how do you tell if fabcde is a hex number or an ID? So I think it's much better to have one consistent and unambigous way of specifying a color rather than shorthands that only work some of the time.

Allowing #606060 would be nice, but # is a comment indicator in YAML so that won't work.

[nagyrobi]

Ok, forget this.