Change ThemeColorSet naming

app/src/main/java/org/thoughtcrime/securesms/ui/theme/ThemeColorSet.kt

@@ -5,8 +5,8 @@ package org.thoughtcrime.securesms.ui.theme
  * light theme, and [dark] representing the [ThemeColors] to use when the system is in a dark theme.
  */
 data class ThemeColorSet(
-    val light: ThemeColors,
-    val dark: ThemeColors
+    val colorsWhenSystemInLight: ThemeColors,
+    val colorsWhenSystemInDark: ThemeColors
 ) {
-    fun get(isDark: Boolean): ThemeColors = if (isDark) dark else light
+    fun get(isDark: Boolean): ThemeColors = if (isDark) colorsWhenSystemInDark else colorsWhenSystemInLight
 }

app/src/main/java/org/thoughtcrime/securesms/ui/theme/ThemeFromPreferences.kt

@@ -29,14 +29,14 @@ fun TextSecurePreferences.getColorSet(): ThemeColorSet {
     val followSystemSettings = getFollowSystemSettings()
 
     return if (followSystemSettings) ThemeColorSet(
-        light = createLight(selectedPrimary),
-        dark = createDark(selectedPrimary)
+        colorsWhenSystemInLight = createLight(selectedPrimary),
+        colorsWhenSystemInDark = createDark(selectedPrimary)
     ) else {
         val both = if ("light" in selectedTheme) createLight(selectedPrimary) else createDark(selectedPrimary)
 
         ThemeColorSet(
-            light = both,
-            dark = both
+            colorsWhenSystemInLight = both,
+            colorsWhenSystemInDark = both
         )
     }
 }