[BUG] tickfontcolor does not allow symbolic color

[ShuhuaGao]

Details

using Plots
plot(1:20, randn(20); size=(400, 300), tickfontcolor=:red)

The above code produces MethodError: MethodError: no method matching alpha(::Symbol).

However, if we specify the color with

plot(1:20, randn(20); size=(400, 300), tickfontcolor=colorant"red")

then it works as expected.

Backends

GR
This bug occurs on ( insert x below )

Backend	yes	no	untested
gr (default)	x
pyplot			x
plotly			x
plotlyjs			x
pgfplotsx			x
inspectdr			x

Versions

Plots.jl version: v1.13.2
Backend version (]st -m): GR v0.57.4
Output of versioninfo():
Julia Version 1.6.0
Commit f9720dc2eb (2021-03-24 12:55 UTC)
Platform Info:
OS: Linux (x86_64-pc-linux-gnu)
CPU: AMD Ryzen 9 5950X 16-Core Processor
WORD_SIZE: 64
LIBM: libopenlibm
LLVM: libLLVM-11.0.1 (ORCJIT, generic)

[BeastyBlacksmith]

can't reproduce on pfgplotsx

[BeastyBlacksmith]

fixed by 096d293