Cannot assign colors to individual bars

[itsdfish]

The ability to assign colors to different bars appears to be broken. I believe a breaking change occurred Plots somewhere between the current version and v1.10.6. The following works with row vectors:

using  StatsPlots
bar(["a"  "b"], [1  2], color=[:red :blue])

However, this does not work with dataframes because it uses columns:

using DataFrames, StatsPlots
df = DataFrame(a = ["a","b"], b = [1,2])
@df df bar(:a, :b, color=[:red, :blue])

which produces the following warning:

┌ Info: Data contains NaNs or missing values, and indices of `fillcolor` vector do not match data indices.
│ If you intend elements of `fillcolor` to apply to individual NaN-separated segements in the data,
│ pass each segment in a separate vector instead, and use a row vector for `fillcolor`. Legend entries 
│ may be suppressed by passing an empty label.
│ For example,
└     plot([1:2,1:3], [[4,5],[3,4,5]], label=["y" ""], fillcolor=[1 2])
┌ Warning: Indices Base.OneTo(2) of attribute `markercolor` does not match data indices 1:11.
└ @ Plots ~/.julia/packages/Plots/kyYZF/src/utils.jl:102
┌ Info: Data contains NaNs or missing values, and indices of `markercolor` vector do not match data indices.
│ If you intend elements of `markercolor` to apply to individual NaN-separated segements in the data,
│ pass each segment in a separate vector instead, and use a row vector for `markercolor`. Legend entries 
│ may be suppressed by passing an empty label.
│ For example,
└     plot([1:2,1:3], [[4,5],[3,4,5]], label=["y" ""], markercolor=[1 2])

The advice in the warning does not appear to be applicable in this case.

Version

versioninfo()
Julia Version 1.6.1
Commit 6aaedecc44 (2021-04-23 05:59 UTC)
Platform Info:
  OS: Linux (x86_64-pc-linux-gnu)
  CPU: Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-11.0.1 (ORCJIT, haswell)
Environment:
  JULIA_CMDSTAN_HOME = /home/dfish/cmdstan-2.19.1
  JULIA_NUM_THREADS = 4
  JULIA_EDITOR = code

[91a5bcdd] Plots v1.12.0
[f3b207a7] StatsPlots v0.14.19

[ElectricCoffee]

I too am having this issue

[dav2017]

The problem is still there, and also for Dictionaries. Once this used to work:
data= Dict("Item 1" => 30, "Item 2" => 35, "Item 3" => 25)
bar(data, legend=false, c=[:red3, :salmon, :skyblue]
Now a workaround is:
bar([[i] for i in keys(data)], [[i] for i in values(data)], legend=false, c=[:red3 :salmon :skyblue])
Not so convenient, and gaps between bars become greater than usual bar plots.

[yha]

I will look at it later this week.