Fixes and drone build should work.

androidApp/src/main/java/bou/amine/apps/readerforselfossv2/android/themes/AppColors.kt

@@ -46,16 +46,16 @@ class AppColors(a: Activity) {
 
         colorBackground = if (isDarkTheme) {
             a.setTheme(R.style.NoBarDark)
-            R.color.darkBackground
+            a.resources.getColor(R.color.darkBackground)
         } else {
             a.setTheme(R.style.NoBar)
-            R.color.grey_50
+            a.resources.getColor(R.color.grey_50)
         }
 
         textColor = if (isDarkTheme) {
-            R.color.white
+            a.resources.getColor(R.color.white)
         } else {
-            R.color.grey_900
+            a.resources.getColor(R.color.grey_900)
         }
     }
 }