Change theme

Changing the theme is not very rocket science but it requires some knowledge here is the class that I use for the interfaces.

web/buil/variables.css

.dark {
    --background: 0 0% 3.9%;
    --foreground: 0 0% 98%;
    --card: 0 0% 3.9%;
    --card-foreground: 0 0% 98%;
    --popover: 0 0% 3.9%;
    --popover-foreground: 0 0% 98%;
    --primary: 0 72.2% 50.6%;
    --primary-foreground: 0 85.7% 97.3%;
    --secondary: 0 0% 14.9%;
    --secondary-foreground: 0 0% 98%;
    --muted: 0 0% 14.9%;
    --muted-foreground: 0 0% 63.9%;
    --accent: 0 0% 14.9%;
    --accent-foreground: 0 0% 98%;
    --destructive: 0 62.8% 30.6%;
    --destructive-foreground: 0 0% 98%;
    --border: 0 0% 14.9%;
    --input: 0 0% 14.9%;
    --ring: 0 72.2% 50.6%;
}

Go to this site which is very good for taking the color you want and changing the classes you want.

https://fffuel.co/cccolor/

Font

To change the font it's even simpler you just have to go to google font and choose the font you want.

For exemle i take this one

Copy head and put it in replace it by the latest stylesheet, after that go to variables.css and change the latest font family by the new font-family: "Roboto Condensed", sans-serif; for this example.

Colors template

Here is some example color for your interface :

Rose

 :root {
    --background: 0 0% 100%;
    --foreground: 240 10% 3.9%;
    --card: 0 0% 100%;
    --card-foreground: 240 10% 3.9%;
    --popover: 0 0% 100%;
    --popover-foreground: 240 10% 3.9%;
    --primary: 346.8 77.2% 49.8%;
    --primary-foreground: 355.7 100% 97.3%;
    --secondary: 240 4.8% 95.9%;
    --secondary-foreground: 240 5.9% 10%;
    --muted: 240 4.8% 95.9%;
    --muted-foreground: 240 3.8% 46.1%;
    --accent: 240 4.8% 95.9%;
    --accent-foreground: 240 5.9% 10%;
    --destructive: 0 84.2% 60.2%;
    --destructive-foreground: 0 0% 98%;
    --border: 240 5.9% 90%;
    --input: 240 5.9% 90%;
    --ring: 346.8 77.2% 49.8%;
    --radius: 0.5rem;
  }
 
  .dark {
    --background: 20 14.3% 4.1%;
    --foreground: 0 0% 95%;
    --card: 24 9.8% 10%;
    --card-foreground: 0 0% 95%;
    --popover: 0 0% 9%;
    --popover-foreground: 0 0% 95%;
    --primary: 346.8 77.2% 49.8%;
    --primary-foreground: 355.7 100% 97.3%;
    --secondary: 240 3.7% 15.9%;
    --secondary-foreground: 0 0% 98%;
    --muted: 0 0% 15%;
    --muted-foreground: 240 5% 64.9%;
    --accent: 12 6.5% 15.1%;
    --accent-foreground: 0 0% 98%;
    --destructive: 0 62.8% 30.6%;
    --destructive-foreground: 0 85.7% 97.3%;
    --border: 240 3.7% 15.9%;
    --input: 240 3.7% 15.9%;
    --ring: 346.8 77.2% 49.8%;
  }

Red

:root {
    --background: 0 0% 100%;
    --foreground: 0 0% 3.9%;
    --card: 0 0% 100%;
    --card-foreground: 0 0% 3.9%;
    --popover: 0 0% 100%;
    --popover-foreground: 0 0% 3.9%;
    --primary: 0 72.2% 50.6%;
    --primary-foreground: 0 85.7% 97.3%;
    --secondary: 0 0% 96.1%;
    --secondary-foreground: 0 0% 9%;
    --muted: 0 0% 96.1%;
    --muted-foreground: 0 0% 45.1%;
    --accent: 0 0% 96.1%;
    --accent-foreground: 0 0% 9%;
    --destructive: 0 84.2% 60.2%;
    --destructive-foreground: 0 0% 98%;
    --border: 0 0% 89.8%;
    --input: 0 0% 89.8%;
    --ring: 0 72.2% 50.6%;
    --radius: 0.5rem;
  }
 
  .dark {
    --background: 0 0% 3.9%;
    --foreground: 0 0% 98%;
    --card: 0 0% 3.9%;
    --card-foreground: 0 0% 98%;
    --popover: 0 0% 3.9%;
    --popover-foreground: 0 0% 98%;
    --primary: 0 72.2% 50.6%;
    --primary-foreground: 0 85.7% 97.3%;
    --secondary: 0 0% 14.9%;
    --secondary-foreground: 0 0% 98%;
    --muted: 0 0% 14.9%;
    --muted-foreground: 0 0% 63.9%;
    --accent: 0 0% 14.9%;
    --accent-foreground: 0 0% 98%;
    --destructive: 0 62.8% 30.6%;
    --destructive-foreground: 0 0% 98%;
    --border: 0 0% 14.9%;
    --input: 0 0% 14.9%;
    --ring: 0 72.2% 50.6%;
  }

Orange

:root {
    --background: 0 0% 100%;
    --foreground: 20 14.3% 4.1%;
    --card: 0 0% 100%;
    --card-foreground: 20 14.3% 4.1%;
    --popover: 0 0% 100%;
    --popover-foreground: 20 14.3% 4.1%;
    --primary: 24.6 95% 53.1%;
    --primary-foreground: 60 9.1% 97.8%;
    --secondary: 60 4.8% 95.9%;
    --secondary-foreground: 24 9.8% 10%;
    --muted: 60 4.8% 95.9%;
    --muted-foreground: 25 5.3% 44.7%;
    --accent: 60 4.8% 95.9%;
    --accent-foreground: 24 9.8% 10%;
    --destructive: 0 84.2% 60.2%;
    --destructive-foreground: 60 9.1% 97.8%;
    --border: 20 5.9% 90%;
    --input: 20 5.9% 90%;
    --ring: 24.6 95% 53.1%;
    --radius: 0.5rem;
  }
 
  .dark {
    --background: 20 14.3% 4.1%;
    --foreground: 60 9.1% 97.8%;
    --card: 20 14.3% 4.1%;
    --card-foreground: 60 9.1% 97.8%;
    --popover: 20 14.3% 4.1%;
    --popover-foreground: 60 9.1% 97.8%;
    --primary: 20.5 90.2% 48.2%;
    --primary-foreground: 60 9.1% 97.8%;
    --secondary: 12 6.5% 15.1%;
    --secondary-foreground: 60 9.1% 97.8%;
    --muted: 12 6.5% 15.1%;
    --muted-foreground: 24 5.4% 63.9%;
    --accent: 12 6.5% 15.1%;
    --accent-foreground: 60 9.1% 97.8%;
    --destructive: 0 72.2% 50.6%;
    --destructive-foreground: 60 9.1% 97.8%;
    --border: 12 6.5% 15.1%;
    --input: 12 6.5% 15.1%;
    --ring: 20.5 90.2% 48.2%;
  }

Rose template

Red template

Orange template

Blue

:root {
    --background: 0 0% 100%;
    --foreground: 222.2 84% 4.9%;
    --card: 0 0% 100%;
    --card-foreground: 222.2 84% 4.9%;
    --popover: 0 0% 100%;
    --popover-foreground: 222.2 84% 4.9%;
    --primary: 221.2 83.2% 53.3%;
    --primary-foreground: 210 40% 98%;
    --secondary: 210 40% 96.1%;
    --secondary-foreground: 222.2 47.4% 11.2%;
    --muted: 210 40% 96.1%;
    --muted-foreground: 215.4 16.3% 46.9%;
    --accent: 210 40% 96.1%;
    --accent-foreground: 222.2 47.4% 11.2%;
    --destructive: 0 84.2% 60.2%;
    --destructive-foreground: 210 40% 98%;
    --border: 214.3 31.8% 91.4%;
    --input: 214.3 31.8% 91.4%;
    --ring: 221.2 83.2% 53.3%;
    --radius: 0.5rem;
  }
 
  .dark {
    --background: 222.2 84% 4.9%;
    --foreground: 210 40% 98%;
    --card: 222.2 84% 4.9%;
    --card-foreground: 210 40% 98%;
    --popover: 222.2 84% 4.9%;
    --popover-foreground: 210 40% 98%;
    --primary: 217.2 91.2% 59.8%;
    --primary-foreground: 222.2 47.4% 11.2%;
    --secondary: 217.2 32.6% 17.5%;
    --secondary-foreground: 210 40% 98%;
    --muted: 217.2 32.6% 17.5%;
    --muted-foreground: 215 20.2% 65.1%;
    --accent: 217.2 32.6% 17.5%;
    --accent-foreground: 210 40% 98%;
    --destructive: 0 62.8% 30.6%;
    --destructive-foreground: 210 40% 98%;
    --border: 217.2 32.6% 17.5%;
    --input: 217.2 32.6% 17.5%;
    --ring: 224.3 76.3% 48%;
  }

Yellow

:root {
    --background: 0 0% 100%;
    --foreground: 20 14.3% 4.1%;
    --card: 0 0% 100%;
    --card-foreground: 20 14.3% 4.1%;
    --popover: 0 0% 100%;
    --popover-foreground: 20 14.3% 4.1%;
    --primary: 47.9 95.8% 53.1%;
    --primary-foreground: 26 83.3% 14.1%;
    --secondary: 60 4.8% 95.9%;
    --secondary-foreground: 24 9.8% 10%;
    --muted: 60 4.8% 95.9%;
    --muted-foreground: 25 5.3% 44.7%;
    --accent: 60 4.8% 95.9%;
    --accent-foreground: 24 9.8% 10%;
    --destructive: 0 84.2% 60.2%;
    --destructive-foreground: 60 9.1% 97.8%;
    --border: 20 5.9% 90%;
    --input: 20 5.9% 90%;
    --ring: 20 14.3% 4.1%;
    --radius: 0.5rem;
  }
 
  .dark {
    --background: 20 14.3% 4.1%;
    --foreground: 60 9.1% 97.8%;
    --card: 20 14.3% 4.1%;
    --card-foreground: 60 9.1% 97.8%;
    --popover: 20 14.3% 4.1%;
    --popover-foreground: 60 9.1% 97.8%;
    --primary: 47.9 95.8% 53.1%;
    --primary-foreground: 26 83.3% 14.1%;
    --secondary: 12 6.5% 15.1%;
    --secondary-foreground: 60 9.1% 97.8%;
    --muted: 12 6.5% 15.1%;
    --muted-foreground: 24 5.4% 63.9%;
    --accent: 12 6.5% 15.1%;
    --accent-foreground: 60 9.1% 97.8%;
    --destructive: 0 62.8% 30.6%;
    --destructive-foreground: 60 9.1% 97.8%;
    --border: 12 6.5% 15.1%;
    --input: 12 6.5% 15.1%;
    --ring: 35.5 91.7% 32.9%;
  }

Purple

:root {
    --background: 0 0% 100%;
    --foreground: 224 71.4% 4.1%;
    --card: 0 0% 100%;
    --card-foreground: 224 71.4% 4.1%;
    --popover: 0 0% 100%;
    --popover-foreground: 224 71.4% 4.1%;
    --primary: 262.1 83.3% 57.8%;
    --primary-foreground: 210 20% 98%;
    --secondary: 220 14.3% 95.9%;
    --secondary-foreground: 220.9 39.3% 11%;
    --muted: 220 14.3% 95.9%;
    --muted-foreground: 220 8.9% 46.1%;
    --accent: 220 14.3% 95.9%;
    --accent-foreground: 220.9 39.3% 11%;
    --destructive: 0 84.2% 60.2%;
    --destructive-foreground: 210 20% 98%;
    --border: 220 13% 91%;
    --input: 220 13% 91%;
    --ring: 262.1 83.3% 57.8%;
    --radius: 0.5rem;
  }
 
  .dark {
    --background: 224 71.4% 4.1%;
    --foreground: 210 20% 98%;
    --card: 224 71.4% 4.1%;
    --card-foreground: 210 20% 98%;
    --popover: 224 71.4% 4.1%;
    --popover-foreground: 210 20% 98%;
    --primary: 263.4 70% 50.4%;
    --primary-foreground: 210 20% 98%;
    --secondary: 215 27.9% 16.9%;
    --secondary-foreground: 210 20% 98%;
    --muted: 215 27.9% 16.9%;
    --muted-foreground: 217.9 10.6% 64.9%;
    --accent: 215 27.9% 16.9%;
    --accent-foreground: 210 20% 98%;
    --destructive: 0 62.8% 30.6%;
    --destructive-foreground: 210 20% 98%;
    --border: 215 27.9% 16.9%;
    --input: 215 27.9% 16.9%;
    --ring: 263.4 70% 50.4%;
  }

Blue template

Yellow template

Purple template