Now, I'm using phpSpreadsheet Chart when writing a graph.
My question is how do I set a background color (gray color) in Chart plotarea.
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On Echart, I am using a brush mode to select some area on the chart. The brush selection has a color which is configurable. I would like to know if it's possible to make the brush selection transparent and darken the part of the chart which is not sectioned.
The result should look like that : (the highlighted part is the part sectioned with the brush mode)
I want to increase size of MPAndroidChart PieChart color indicator color squar mentioned in blow image
The part of the chart that you are talking about is the Legend.
There are various ways of styling it which can be found in the documentation.
You can set text size and color and many other things.
I'm working on a chart in ActiveReports 8 and I'm having problems setting the background color for the chart. I've found that I can change the color with chart.ChartAreas(0).WallXY.Backdrop.Color = but it always appears to be shaded. For example, when I set it to White the background color appears to be light gray. Is there a way to control how/if ActiveReports shades the walls on a chart?
It appears that setting
chart.ChartAreas(0).Light.Type = GrapeCity.ActiveReports.Chart.LightType.Ambient
removes the shading from all of the walls in the chart. This allowed me to set the colors how I wanted them without ActiveReports affecting the colors/shading.
I have these Views on which I add UILabels as text, The Views can have a background color that is dynamic and cannot be chosen,
Based on that I need to figure out the font color from only a set of three choices - two black or white or dark grey.
For example on a dark red background, a white font would be more suitable than black, while on a light yellow, perhaps a dark grey or black would be readable,
is there any index i could check from the background UIColor to see the illuminance?
Take a look at my UIColor category and the blackOrWhiteContrastingColor method. This will tell you what will look better out of black or white. You could extend that to support dark grey as well.
Basically the way it works is to look at the luminosity difference between the target colour and black, and then between the target colour and white. It then chooses the biggest luminosity difference.
I am using a uipicker as an input view for a text control. I also have a toolbar set up as an accessory input view. I would like the toolbar tint to match the picker. I have tried using the magnifier tool on the color chooser to get the RGB for the picker, but when I use these RGB values to set the tint on the toolbar I get get a close, but not exact match.
Is there anyway to figure out exactly the background color of the picker? None of the palettes in the color chooser seem to have this particular shade of gray with a slight hint of blue.
Thanks,
Jenny
The border consists of a gradient for the top half and a solid color for the bottom half:
As for the 'white' background, the brightest part is a #fafafa to #5f627c gradient.