Can you add an option to change the color and remove the texture please?

[siferati]

I'd like to change the energy bar to something with a solid color like this.

[Flanger-dev]

I'd like to change the energy bar to something with a solid color like this.

Before this gets implemented, you can achieve desired result by editing ...\AddOns\SimpleEnergyBar\SimpleEnergyBar.lua file.

Find string:
statusbar:SetStatusBarTexture("Interface\\TARGETINGFRAME\\UI-StatusBar")
and change it to
statusbar:SetStatusBarTexture("Interface\\Tooltips\\UI-Tooltip-Background")

To alter the color, change values in the string:
statusbar:SetStatusBarColor

Seems like it uses default RGB coloring scheme, but the RGB scale is only from 0 to 1, so just use division by 255.

Example color
statusbar:SetStatusBarColor(140/255, 200/255, 37/255)