Add custom inventory text color texture pack support

src/main/kotlin/features/texturepack/CustomSkyBlockTextures.kt

@@ -35,6 +35,7 @@ object CustomSkyBlockTextures : FirmamentFeature {
         val enableArmorOverrides by toggle("armor-overrides") { true }
         val enableBlockOverrides by toggle("block-overrides") { true }
         val enableLegacyCIT by toggle("legacy-cit") { true }
+        val allowRecoloringUiText by toggle("recolor-text") { true }
     }
 
     override val config: ManagedConfig

src/main/kotlin/features/texturepack/CustomTextColors.kt

@@ -0,0 +1,66 @@
+package moe.nea.firmament.features.texturepack
+
+import java.util.Optional
+import kotlinx.serialization.Serializable
+import kotlin.jvm.optionals.getOrNull
+import net.minecraft.resource.ResourceManager
+import net.minecraft.resource.SinglePreparationResourceReloader
+import net.minecraft.text.Text
+import net.minecraft.util.Identifier
+import net.minecraft.util.profiler.Profiler
+import moe.nea.firmament.Firmament
+import moe.nea.firmament.annotations.Subscribe
+import moe.nea.firmament.events.FinalizeResourceManagerEvent
+import moe.nea.firmament.util.collections.WeakCache
+
+object CustomTextColors : SinglePreparationResourceReloader<CustomTextColors.TextOverrides?>() {
+	@Serializable
+	data class TextOverrides(
+		val defaultColor: Int,
+		val overrides: List<TextOverride> = listOf()
+	)
+
+	@Serializable
+	data class TextOverride(
+		val predicate: StringMatcher,
+		val override: Int,
+	)
+
+	@Subscribe
+	fun registerTextColorReloader(event: FinalizeResourceManagerEvent) {
+		event.resourceManager.registerReloader(this)
+	}
+
+	val cache = WeakCache.memoize<Text, Optional<Int>>("CustomTextColor") { text ->
+		val override = textOverrides ?: return@memoize Optional.empty()
+		Optional.of(override.overrides.find { it.predicate.matches(text) }?.override ?: override.defaultColor)
+	}
+
+	fun mapTextColor(text: Text, oldColor: Int): Int {
+		if (textOverrides == null) return oldColor
+		return cache(text).getOrNull() ?: oldColor
+	}
+
+	override fun prepare(
+		manager: ResourceManager,
+		profiler: Profiler
+	): TextOverrides? {
+		val resource = manager.getResource(Identifier.of("firmskyblock", "overrides/text_colors.json")).getOrNull()
+			?: return null
+		return Firmament.tryDecodeJsonFromStream<TextOverrides>(resource.inputStream)
+			.getOrElse {
+				Firmament.logger.error("Could not parse text_colors.json", it)
+				null
+			}
+	}
+
+	var textOverrides: TextOverrides? = null
+
+	override fun apply(
+		prepared: TextOverrides?,
+		manager: ResourceManager,
+		profiler: Profiler
+	) {
+		textOverrides = prepared
+	}
+}