Existing color definitions in colors.xml get overriden

[ajberasategui]

Bug report

CHECKLIST

• I have read the issue reporting guidelines

• I confirm this is a suspected bug or issue that will affect other users

• I have reproduced the issue using the example project or provided the necessary information to reproduce the issue.

• I have read the documentation thoroughly and it does not help solve my issue.

• I have checked that no similar issues (open or closed) already exist.

Current behavior:

Running prepare for Android platform overrides colors.xml by removing everything in it and adding only the Accent color required by this plugin.

Expected behavior:

The plugin after prepare script actually tries not to override existing colors but instead adding the accent one, but it fails because of a wrong condition check.

Steps to reproduce:

1. Clone test project.
2. Manually define custom colors in colors.xml Android file.
3. Run cordova prepare Android
4. Check colors.xml file contents. Step 2 colors are gone.

Screenshots

Environment information

• Cordova CLI version
  • 9.0.0 (cordova-lib@9.0.1)
• Cordova platform version
  • android 8.1.0
• Dev machine OS and version, e.g.
  • OSX
    • 10.15.3

Related code:
The issue is specifically in after_prepare.js line #131:

if($resources.color && $resources.color._text) {

As $resources.color is an array, $resources.color._text is always undefined/false.

Other information:

Issue was introduced as part of: #284