Repository: microsoft/PowerToys
File: src/modules/poweraccent/PowerAccent.Core/Languages.cs (C#)

Code before:
                LetterKey.VK_G => new[] { "ģ", "ǧ", "ġ", "ĝ", "ǥ" },
                LetterKey.VK_H => new[] { "ḣ", "ĥ", "ħ" },
                LetterKey.VK_J => new[] { "ĵ" },
                LetterKey.VK_K => new[] { "ķ", "ǩ" },
                LetterKey.VK_L => new[] { "ļ", "₺" }, // ₺ is in VK_T for other languages, but not VK_L, so we add it here.
                LetterKey.VK_M => new[] { "ṁ" },
                LetterKey.VK_N => new[] { "ņ", "ṅ", "ⁿ", "ℕ", "№" },
                LetterKey.VK_O => new[] { "ȯ", "∅", "⌀" },
                LetterKey.VK_P => new[] { "ṗ", "℗", "∏", "¶" },
                LetterKey.VK_Q => new[] { "ℚ" },
                LetterKey.VK_R => new[] { "ṙ", "®", "ℝ" },
                LetterKey.VK_S => new[] { "ṡ", "§", "∑", "∫" },
                LetterKey.VK_T => new[] { "ţ", "ṫ", "ŧ", "™" },
                LetterKey.VK_U => new[] { "ŭ" },
                LetterKey.VK_V => new[] { "V̇" },
                LetterKey.VK_W => new[] { "ẇ" },
                LetterKey.VK_X => new[] { "ẋ", "×" },
                LetterKey.VK_Y => new[] { "ẏ", "ꝡ" },
                LetterKey.VK_Z => new[] { "ʒ", "ǯ", "ℤ" },
                LetterKey.VK_COMMA => new[] { "∙", "₋", "⁻", "–", "√", "‟", "《", "》", "‛", "〈", "〉", "″", "‴", "⁗" }, // – is in VK_MINUS for other languages, but not VK_COMMA, so we add it here.
                LetterKey.VK_PERIOD => new[] { "…", "⁝", "\u0300", "\u0301", "\u0302", "\u0303", "\u0304", "\u0308", "\u030B", "\u030C" },
                LetterKey.VK_MINUS => new[] { "~", "‐", "‑", "‒", "—", "―", "⁓", "−", "⸺", "⸻", "∓" },
                LetterKey.VK_SLASH_ => new[] { "÷", "√" },
                LetterKey.VK_DIVIDE_ => new[] { "÷", "√" },
                LetterKey.VK_MULTIPLY_ => new[] { "×", "⋅" },
                LetterKey.VK_PLUS => new[] { "≤", "≥", "≠", "≈", "≙", "⊕", "⊗", "∓", "≅", "≡", "₊", "⁺" },
                LetterKey.VK_BACKSLASH => new[] { "`", "~" },
                _ => Array.Empty<string>(),
            };
        }

        // Bulgarian
        private static string[] GetDefaultLetterKeyBG(LetterKey letter)
        {
            return letter switch
            {
                LetterKey.VK_I => new[] { "й" },
                _ => Array.Empty<string>(),
            };
        }

        // Crimean Tatar
        private static string[] GetDefaultLetterKeyCRH(LetterKey letter)
        {
            return letter switch
            {
                LetterKey.VK_A => new[] { "â" },
                LetterKey.VK_C => new[] { "ç" },
                LetterKey.VK_E => new[] { "€" },
                LetterKey.VK_G => new[] { "ğ" },
                LetterKey.VK_H => new[] { "₴" },

Review comment (suggestion):
I just wanted to create a new comment because the previous thread was resolved (I made a comment [in the thread](https://github.com/microsoft/PowerToys/pull/43504/files#r2595811703) too, but it wouldn't let me "unresolve" it).

I believe that ± needs to be added here. It was removed from LetterKey.VK_COMMA in Portuguese (in _this_ pull request) and now doesn't appear in any language packs. Issue #43457 specifically mentions ±, so excluding it will mean that the issue isn't resolved

Code after:
                LetterKey.VK_G => new[] { "ģ", "ǧ", "ġ", "ĝ", "ǥ" },
                LetterKey.VK_H => new[] { "ḣ", "ĥ", "ħ" },
                LetterKey.VK_J => new[] { "ĵ" },
                LetterKey.VK_K => new[] { "ķ", "ǩ" },
                LetterKey.VK_L => new[] { "ļ", "₺" }, // ₺ is in VK_T for other languages, but not VK_L, so we add it here.
                LetterKey.VK_M => new[] { "ṁ" },
                LetterKey.VK_N => new[] { "ņ", "ṅ", "ⁿ", "ℕ", "№" },
                LetterKey.VK_O => new[] { "ȯ", "∅", "⌀" },
                LetterKey.VK_P => new[] { "ṗ", "℗", "∏", "¶" },
                LetterKey.VK_Q => new[] { "ℚ" },
                LetterKey.VK_R => new[] { "ṙ", "®", "ℝ" },
                LetterKey.VK_S => new[] { "ṡ", "§", "∑", "∫" },
                LetterKey.VK_T => new[] { "ţ", "ṫ", "ŧ", "™" },
                LetterKey.VK_U => new[] { "ŭ" },
                LetterKey.VK_V => new[] { "V̇" },
                LetterKey.VK_W => new[] { "ẇ" },
                LetterKey.VK_X => new[] { "ẋ", "×" },
                LetterKey.VK_Y => new[] { "ẏ", "ꝡ" },
                LetterKey.VK_Z => new[] { "ʒ", "ǯ", "ℤ" },
                LetterKey.VK_COMMA => new[] { "∙", "₋", "⁻", "–", "√", "‟", "《", "》", "‛", "〈", "〉", "″", "‴", "⁗" }, // – is in VK_MINUS for other languages, but not VK_COMMA, so we add it here.
                LetterKey.VK_PERIOD => new[] { "…", "⁝", "\u0300", "\u0301", "\u0302", "\u0303", "\u0304", "\u0308", "\u030B", "\u030C" },
                LetterKey.VK_MINUS => new[] { "~", "‐", "‑", "‒", "—", "―", "⁓", "−", "⸺", "⸻", "∓" },
                LetterKey.VK_SLASH_ => new[] { "÷", "√" },
                LetterKey.VK_DIVIDE_ => new[] { "÷", "√" },
                LetterKey.VK_MULTIPLY_ => new[] { "×", "⋅" },
                LetterKey.VK_PLUS => new[] { "≤", "≥", "≠", "≈", "≙", "⊕", "⊗", "±", "≅", "≡", "₊", "⁺" },
                LetterKey.VK_BACKSLASH => new[] { "`", "~" },
                _ => Array.Empty<string>(),
            };
        }

        // Bulgarian
        private static string[] GetDefaultLetterKeyBG(LetterKey letter)
        {
            return letter switch
            {
                LetterKey.VK_I => new[] { "й" },
                _ => Array.Empty<string>(),
            };
        }

        // Crimean Tatar
        private static string[] GetDefaultLetterKeyCRH(LetterKey letter)
        {
            return letter switch
            {
                LetterKey.VK_A => new[] { "â" },
                LetterKey.VK_C => new[] { "ç" },
                LetterKey.VK_E => new[] { "€" },
                LetterKey.VK_G => new[] { "ğ" },
                LetterKey.VK_H => new[] { "₴" },