Process element color theming values

[AndyScherzinger]

adding color values for element see also nextcloud/server#21586 ff.
Available with Nc 19.0.1 server

[nextcloud-android-bot]

Lint

Type	master	PR
Warnings	1	1
Errors	0	0

SpotBugs (new)

Warning Type	Number
Bad practice Warnings	14
Correctness Warnings	38
Internationalization Warnings	6
Malicious code vulnerability Warnings	7
Multithreaded correctness Warnings	3
Performance Warnings	17
Security Warnings	1
Dodgy code Warnings	41
Total	127

SpotBugs (master)

Warning Type	Number
Bad practice Warnings	14
Correctness Warnings	38
Internationalization Warnings	6
Malicious code vulnerability Warnings	7
Multithreaded correctness Warnings	3
Performance Warnings	17
Security Warnings	1
Dodgy code Warnings	41
Total	127

[codecov]

Codecov Report

Merging #464 into master will decrease coverage by 0.00%.
The diff coverage is 38.46%.

@@            Coverage Diff             @@
##           master     #464      +/-   ##
==========================================
- Coverage   39.47%   39.47%   -0.01%     
==========================================
  Files         136      136              
  Lines        5897     5910      +13     
  Branches      771      777       +6     
==========================================
+ Hits         2328     2333       +5     
- Misses       3223     3225       +2     
- Partials      346      352       +6     

Impacted Files	Coverage Δ
...sources/status/GetCapabilitiesRemoteOperation.java	46.77% <33.33%> (-0.51%)	⬇️
...oud/android/lib/resources/status/OCCapability.java	53.39% <50.00%> (-0.14%)	⬇️