fix ticks for categorical colorbar

[SimonDanisch]

No description provided.

[MakieBot]

Compile Times benchmark

Note, that these numbers may fluctuate on the CI servers, so take them with a grain of salt. All benchmark results are based on the mean time and negative percent mean faster than the base branch. Note, that GLMakie + WGLMakie run on an emulated GPU, so the runtime benchmark is much slower. Results are from running:

using_time = @ctime using Backend
# Compile time
create_time = @ctime fig = scatter(1:4; color=1:4, colormap=:turbo, markersize=20, visible=true)
display_time = @ctime Makie.colorbuffer(display(fig))
# Runtime
create_time = @benchmark fig = scatter(1:4; color=1:4, colormap=:turbo, markersize=20, visible=true)
display_time = @benchmark Makie.colorbuffer(fig)

	using	create	display	create	display
GLMakie	3.36s (3.28, 3.45) 0.05+-	167.64ms (160.48, 180.26) 7.49+-	465.28ms (456.38, 473.69) 7.28+-	7.41ms (7.20, 7.61) 0.14+-	26.02ms (25.75, 26.45) 0.23+-
master	3.35s (3.25, 3.53) 0.10+-	165.54ms (160.90, 171.80) 4.49+-	468.61ms (458.10, 486.60) 11.08+-	7.20ms (6.90, 7.41) 0.18+-	25.48ms (25.26, 25.87) 0.27+-
evaluation	0.99x invariant, 0.02s (0.21d, 0.70p, 0.08std)	0.99x invariant, 2.1ms (0.34d, 0.54p, 5.99std)	1.01x invariant, -3.32ms (-0.35d, 0.52p, 9.18std)	0.97x slower X, 0.22ms (1.36d, 0.03p, 0.16std)	0.98x slower X, 0.54ms (2.13d, 0.00p, 0.25std)
CairoMakie	3.02s (2.99, 3.08) 0.03+-	168.73ms (164.71, 173.49) 3.39+-	103.32ms (101.19, 108.16) 2.34+-	7.49ms (7.38, 7.54) 0.05+-	893.68μs (887.56, 899.99) 4.43+-
master	3.04s (2.98, 3.11) 0.05+-	172.61ms (166.19, 179.78) 4.87+-	103.30ms (102.11, 106.18) 1.43+-	7.59ms (7.49, 7.70) 0.08+-	891.16μs (885.53, 896.23) 4.07+-
evaluation	1.01x invariant, -0.02s (-0.58d, 0.30p, 0.04std)	1.02x invariant, -3.88ms (-0.92d, 0.11p, 4.13std)	1.00x invariant, 0.02ms (0.01d, 0.98p, 1.88std)	1.01x faster ✓, -0.1ms (-1.49d, 0.02p, 0.07std)	1.00x invariant, 2.52μs (0.59d, 0.29p, 4.25std)
WGLMakie	3.69s (3.64, 3.75) 0.04+-	292.40ms (166.80, 389.88) 114.90+-	8.95s (8.75, 9.12) 0.11+-	9.43ms (9.31, 9.76) 0.15+-	69.13ms (68.70, 69.45) 0.26+-
master	3.69s (3.66, 3.70) 0.01+-	174.89ms (167.95, 190.81) 7.77+-	9.11s (9.01, 9.30) 0.10+-	9.63ms (9.21, 10.71) 0.50+-	68.94ms (68.19, 69.59) 0.54+-
evaluation	1.00x invariant, 0.0s (0.00d, 1.00p, 0.03std)	0.60x slower❌, 117.5ms (1.44d, 0.04p, 61.34std)	1.02x faster ✓, -0.16s (-1.50d, 0.02p, 0.11std)	1.02x invariant, -0.2ms (-0.54d, 0.35p, 0.33std)	1.00x invariant, 0.19ms (0.45d, 0.42p, 0.40std)