Bump version to 0.50.0

[imaNNeo]

This release has some breaking changes. So please check out the migration guide here

• IMPROVEMENT Allow to return a Widget in SideTitles.getTitlesWidget instead of a String. For example, you can pass an Icon widget as a title, support custom widget for titles #183. Check below samples:

LineChartSample 8 (Source Code)

BarChartSample 7 (Source Code)

• BREAKING Structure of FlTitlesData, AxisTitles, and SideTitles are changed. Because we are using a new system which allows you to pass any Flutter Widget as a title instead of passing string, textStyle, textAlign, rotation, ... (Read our Migration Guide)
• FEATURE Now we can use any Gradient such as LinearGradient and RadialGradient everywhere we have gradient.
• BUGFIX Fix BarChart rods gradient problem, BarCharts - Option to make gradient relative to each bars height, not the height of the chart #703.
• BREAKING colors property renamed to color to keep only one solid color. And now we have a gradient field instead of colorStops, gradientFrom and gradientTo in following classes: BarChartRodData, BackgroundBarChartRodData, BarAreaData, BetweenBarsData, LineChartBarData. (Read our Migration Guide to learn more about it)

[codecov]

Codecov Report

Merging #953 (241b268) into master (24c5269) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #953   +/-   ##
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  Coverage   85.01%   85.01%           
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  Files          42       42           
  Lines        2716     2716           
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  Hits         2309     2309           
  Misses        407      407           

📣 Codecov can now indicate which changes are the most critical in Pull Requests. Learn more

[onurgunes]

Hi Iman, thanks for the updates. When are you planning to merge it and make it available on pub.dev?

[imaNNeo]

Hi, @onurgunes.
I'm just checking some stuff. I will merge it soon.