[ImGui] Apply color theme from `config/base_colors.json` #100487

Job	Run time
matrix-variables	1s
matrix-variables	1s
skip-duplicates-code	4s
skip-duplicates-code	4s
skip-duplicates-data	5s
skip-duplicates-data	5s
Basic Build and Test (Clang 10, Ubuntu, Curses)	28m 35s
Basic Build and Test (Clang 10, Ubuntu, Curses)	33m 43s
GCC 9, Curses, LTO	1s
GCC 9, Curses, LTO	1s
Clang 12, Ubuntu, Tiles, ASan	1s
Clang 12, Ubuntu, Tiles, ASan	1s
GCC 11, Ubuntu, Curses, ASan	1s
GCC 11, Ubuntu, Curses, ASan	1s
GCC 12, Ubuntu cross-compile to MinGW-Win64, Tiles, Sound	1s
GCC 12, Ubuntu cross-compile to MinGW-Win64, Tiles, Sound	1s
GCC 9, Ubuntu, Tiles, Sound, CMake	1s
GCC 9, Ubuntu, Tiles, Sound, CMake	1s
Clang 14, macOS 12, Tiles, Sound, x64 and arm64 Universal Binary	1s
Clang 14, macOS 12, Tiles, Sound, x64 and arm64 Universal Binary	1s
emscripten	0s
emscripten	0s
	1h 2m 50s

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