How can i change construct 3 icons-colors for a custom theme

I am create my own theme of construct 3, now how can i change icon's color in my theme, i am able to download construct's icons spritesheet and able to change their color but i don't know how could i replace them with official icons

(Note: I am not changing actual icons, i am just changing their colors according to my theme.)

I am very beginner level developer.

Go to Projects Window

-> Files option (at the end)

->Open Icons folder

->Double click and change the icon in the editor

I am not asking about logo icons but i am asking about all mini icons i.e. plugin icons, behavior icons, effect icons, layout icons, event sheet icons, loop icons etc

I am creating a theme for construct 3.