config.lua file added to TIC working folder and it has two global variables FONT and PALETTE
here is an example
local WideFont = "...... ..##.. .#.#.. .#.#.. .####. #...#. .#.... ..#... ..#... .#.... ..#... ...... ...... ...... ...... ....#. ".. "...... ..##.. .#.#.. #####. #.#... ...#.. #.#... .#.... .#.... ..#... #.#.#. ..#... ...... ...... ...... ...#.. ".. "...... ..##.. ...... .#.#.. .###.. ..#... .##.#. ...... .#.... ..#... .###.. .###.. ...... .###.. ...... ..#... ".. "...... ...... ...... #####. ..#.#. .#.... #..#.. ...... .#.... ..#... #.#.#. ..#... .##... ...... .##... .#.... ".. "...... ..##.. ...... .#.#.. ####.. #...#. .##.#. ...... ..#... .#.... ..#... ...... ..#... ...... .##... #..... ".. "...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... .#.... ...... ...... ...... ".. " ".. " ".. ".###.. .##... ####.. #####. ..##.. #####. .###.. #####. .###.. .###.. .##... .##... ...#.. ...... .#.... .####. ".. "##..#. ###... ...##. ...##. .###.. ##.... ##.... ...##. ##..#. ##..#. .##... .##... ..#... .###.. ..#... ...##. ".. "##..#. .##... .###.. ..##.. ##.#.. ####.. ####.. ..##.. .###.. .####. ...... ...... .#.... ...... ...#.. ..##.. ".. "##..#. .##... ##.... #..##. #####. ...##. ##..#. .##... ##..#. ....#. .##... .##... ..#... .###.. ..#... ...... ".. ".###.. ####.. #####. .###.. ...#.. ####.. .###.. ##.... .###.. .###.. .##... ..#... ...#.. ...... .#.... ..##.. ".. "...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... .#.... ...... ...... ...... ...... ".. " ".. " ".. ".###.. .###.. ####.. .###.. ####.. #####. #####. .####. ##..#. .####. #####. ##..#. ##.... ##.##. ##..#. .###.. ".. "#.#.#. ##..#. ##..#. ##..#. ##..#. ##.... ##.... ##.... ##..#. ..##.. ...##. ##.#.. ##.... #####. ###.#. ##..#. ".. "#.###. ##..#. ####.. ##.... ##..#. ####.. ####.. ##.##. #####. ..##.. ...##. ###... ##.... #####. #####. ##..#. ".. "#..... #####. ##..#. ##..#. ##..#. ##.... ##.... ##..#. ##..#. ..##.. ##.##. ##.#.. ##.... #.#.#. ##.##. ##..#. ".. ".###.. ##..#. ####.. .###.. ####.. #####. ##.... .####. ##..#. .####. .###.. ##..#. #####. #...#. ##..#. .###.. ".. "...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ".. " ".. " ".. "####.. .###.. ####.. .####. .####. ##..#. ##..#. #...#. ##..#. .##.#. #####. .##... #..... .##... ..#... ...... ".. "##..#. ##..#. ##..#. ###... ..##.. ##..#. ##..#. #.#.#. ##..#. .##.#. ..##.. .#.... .#.... ..#... .#.#.. ...... ".. "##..#. ##..#. ##..#. .###.. ..##.. ##..#. ##..#. #####. .###.. .####. .##... .#.... ..#... ..#... #...#. ...... ".. "####.. ##..#. ####.. ..###. ..##.. ##..#. .###.. #####. ##..#. ..##.. ##.... .#.... ...#.. ..#... ...... ...... ".. "##.... .###.. ##..#. ####.. ..##.. .###.. ..#... ##.##. ##..#. ..##.. #####. .##... ....#. .##... ...... .####. ".. "...... ....#. ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ".. " ".. " ".. ".#.... ...... ##.... ...... ...##. ...... ..###. ...... ##.... ..##.. ...##. ##.... .##... ...... ...... ...... ".. "..#... .####. ####.. .####. .####. .###.. .##... .###.. ####.. ...... ...... ##..#. .##... ##.#.. ####.. .###.. ".. "...... #..##. ##..#. ###... #..##. ##.##. #####. #..##. ##..#. .###.. ...##. ####.. .##... #####. ##..#. ##..#. ".. "...... #..##. ##..#. ###... #..##. ###... .##... #####. ##..#. ..##.. ...##. ##..#. .##... #.#.#. ##..#. ##..#. ".. "...... .####. ####.. .####. .####. .###.. .##... ...##. ##..#. .####. #..##. ##..#. ..###. #.#.#. ##..#. .###.. ".. "...... ...... ...... ...... ...... ...... ...... .###.. ...... ...... .###.. ...... ...... ...... ...... ...... ".. " ".. " ".. "...... ...... ...... ...... .##... ...... ...... ...... ...... ...... ...... ..##.. ..#... .##... ...... ...... ".. "####.. .####. ####.. ..###. #####. #..##. ##..#. #...#. ##.##. #..##. #####. ..#... ..#... ..#... ..#.#. ...... ".. "##..#. #..##. ##..#. .##... .##... #..##. ##..#. #.#.#. .###.. #..##. ..##.. .##... ..#... ..##.. .#.#.. ...... ".. "##..#. #..##. ##.... ...##. .##... #..##. ##.#.. #####. .###.. .####. .##... ..#... ..#... ..#... ...... ...... ".. "####.. .####. ##.... .###.. ..###. .####. ###... ##.##. ##.##. ...##. #####. ..##.. ..#... .##... ...... ...... ".. "##.... ...##. ...... ...... ...... ...... ...... ...... ...... .###.. ...... ...... ...... ...... ...... ...... ".. " ".. " "; local C64 = "000000".."574200".."40318d".."505050".."8b5429".."55a049".."883932".."787878".. "8b3f96".."7869c4".."9f9f9f".."94e089".."b86962".."67b6bd".."bfce72".."ffffff"; -------------------------------------------------------------------------------------------------------------------------------------------- FONT = WideFont; PALETTE = C64;
So, you can edit system font or RGB values in any external editor you want and reload TIC to take effect. Font renderer reacts only to # character.
You can edit it directly in the file system (win: C:\Users\%user%\AppData\Roaming\TIC - tiny computer\0.16.0 dev) or by using get/add commands in the TICs console.
But remember that the assigned font and palette will appear only in your local copy of TIC, not in exported game.