Colors in light theme too bright

When using valuecolor=[ON="green"], basic UI shows a darker green than the app. Even when chaning the basic-ui theme, an intensiv light green (seems `#00FF00’) is shown.

This is too bright for a white background.

We should change the colors at least in the basic-ui theme to match the basic ui and provide better accessibility through higher contrast.

Here’s a quick comparison between basic UI (first) and app (second)

[maniac103]

@mueller-ma Working diff to your current state: https://pastebin.com/8atxWmMZ … however, I would strongly suggest to

• make OpenHABWidget store the string representation only, not the parsed color and
• move parsing to the view adapter (optimization: resolve the arrays only once, maybe by adding an additional setter to ViewHolder called from onCreateViewHolder)

Benefit of that is that OpenHABWidget and friends stay dumb data holders without any theme dependency; after all they’re not reloaded on theme changes.

[maniac103]

One pointer for resource arrays: http://www.davidebasso.me/android/android-color-list-arrays-in-xml/ … just needs the attribute-to-resource-ID added on top.

In particular, we’d need one such array per them defined in arrays.xml and then need a theme attribute that references the respective array.