adding theme support!!

looking at swiftermapp, it uses string splitting to parse a plist of colours
i couldnt be asked to do this, so i made my own codable types and non codable types to automatically parse the plist lol
anyways might merge the Codable and non codabel types later, but i thik it works now so im leaving it as is rn
moved scrollback restore funcito higher

ShhShell/Themes/Theme.swift

@@ -0,0 +1,125 @@
+//
+//  Theme.swift
+//  ShhShell
+//
+//  Created by neon443 on 27/06/2025.
+//
+
+import Foundation
+import SwiftTerm
+
+struct Theme: Hashable, Equatable {
+	var name: String
+	var ansi: [SwiftTerm.Color]
+	var foreground: SwiftTerm.Color
+	var background: SwiftTerm.Color
+	var cursor: SwiftTerm.Color
+	var cursorText: SwiftTerm.Color
+	var bold: SwiftTerm.Color
+	var selectedText: SwiftTerm.Color
+	var selection: SwiftTerm.Color
+	
+	static func fromiTermColors(name: String, data: Data?) -> Theme? {
+		guard let data else { return nil }
+		guard let string = String(data: data, encoding: .utf8) else { return nil }
+		
+		let decoder = PropertyListDecoder()
+		
+		guard let decoded = try? decoder.decode(ThemeCodable.self, from: data) else { return nil }
+		
+		let theme = Theme(
+			name: name,
+			ansi: decoded.ansi,
+			foreground: Color(decoded.foreground),
+			background: Color(decoded.background),
+			cursor: Color(decoded.cursor),
+			cursorText: Color(decoded.cursorText),
+			bold: Color(decoded.bold),
+			selectedText: Color(decoded.selectedText),
+			selection: Color(decoded.selection)
+		)
+		return theme
+	}
+}
+
+
+struct ThemeCodable: Codable {
+	var ansi0: ColorCodable
+	var ansi1: ColorCodable
+	var ansi2: ColorCodable
+	var ansi3: ColorCodable
+	var ansi4: ColorCodable
+	var ansi5: ColorCodable
+	var ansi6: ColorCodable
+	var ansi7: ColorCodable
+	var ansi8: ColorCodable
+	var ansi9: ColorCodable
+	var ansi10: ColorCodable
+	var ansi11: ColorCodable
+	var ansi12: ColorCodable
+	var ansi13: ColorCodable
+	var ansi14: ColorCodable
+	var ansi15: ColorCodable
+	var foreground: ColorCodable
+	var background: ColorCodable
+	var cursor: ColorCodable
+	var cursorText: ColorCodable
+	var bold: ColorCodable
+	var selectedText: ColorCodable
+	var selection: ColorCodable
+	
+	enum CodingKeys: String, CodingKey {
+		case ansi0 = "Ansi 0 Color"
+		case ansi1 = "Ansi 1 Color"
+		case ansi2 = "Ansi 2 Color"
+		case ansi3 = "Ansi 3 Color"
+		case ansi4 = "Ansi 4 Color"
+		case ansi5 = "Ansi 5 Color"
+		case ansi6 = "Ansi 6 Color"
+		case ansi7 = "Ansi 7 Color"
+		case ansi8 = "Ansi 8 Color"
+		case ansi9 = "Ansi 9 Color"
+		case ansi10 = "Ansi 10 Color"
+		case ansi11 = "Ansi 11 Color"
+		case ansi12 = "Ansi 12 Color"
+		case ansi13 = "Ansi 13 Color"
+		case ansi14 = "Ansi 14 Color"
+		case ansi15 = "Ansi 15 Color"
+		case foreground = "Foreground Color"
+		case background = "Background Color"
+		case cursor = "Cursor Color"
+		case cursorText = "Cursor Text Color"
+		case bold = "Bold Color"
+		case selectedText = "Selected Text Color"
+		case selection = "Selection Color"
+	}
+}
+
+extension ThemeCodable {
+	var ansi: [Color] {
+		let arr = [ansi0, ansi1, ansi2, ansi3, ansi4, ansi5, ansi6, ansi7, ansi8, ansi9, ansi10, ansi11, ansi12, ansi13, ansi14, ansi15]
+		return arr.map(SwiftTerm.Color.init)
+	}
+}
+
+struct ColorCodable: Codable {
+	var red: Double
+	var green: Double
+	var blue: Double
+	
+	enum CodingKeys: String, CodingKey {
+		case red = "Red Component"
+		case green = "Green Component"
+		case blue = "Blue Component"
+	}
+}
+
+
+extension SwiftTerm.Color {
+	convenience init(_ colorCodable: ColorCodable) {
+		let red = UInt16(colorCodable.red * 65535)
+		let green = UInt16(colorCodable.green * 65535)
+		let blue = UInt16(colorCodable.blue * 65535)
+		self.init(red: red, green: green, blue: blue)
+	}
+}